How to Use the Price Per TB Calculator:

United Kingdom
United States
LAST UPDATED: December 10, 2025 21:38
| $18.75 | Seagate Seagate 4TB HDD 5.9K RPM 3.5" 6Gb/s SATA Hard Disk Drive Model: ST4000DM000 DP/N: VF3T3 st4000dm000 | 4TB | CMR | 75 | Link |
| $19.49 | Seagate Seagate 2TB Pipeline HD SATA 6Gb/s 64MB Cache 3.5-Inch Internal Bare Drive (ST2000VM003) ST2000VM003 | 2Tb | CMR | 39 | Link |
| $19.83 | WD Western Digital 18TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181KRYZ WD181KRYZ | 18TB | CMR | 357 | Link |
| $20 | Western Digital Western Digital 10TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD100EAGZ WD100EAGZ | 10TB | CMR | 200 | Link |
| $20.5 | Seagate 4TB 7.2K 6G SAS 3.5-inch Hard Drive Compatible with ST4000NM0023 ST4000NM0023 | 4TB | CMR | 79 | Link |
| $20.83 | Toshiba Toshiba HDWG51CUZSVA Hard Drive 3.5" 12 TB - Brand EAN: 4260557512920 HDWG51CUZSVA | 12TB | CMR | 250 | Link |
| $22.11 | Seagate IronWolf ST12000VN0008 Hard Drive ST12000VN0008 | 12TB | CMR | 265 | Link |
| $22.5 | Seagate (Old Model) Seagate 6TB Desktop HDD SATA 6Gb/s NCQ 128MB Cache 7200RPM 3.5-Inch Internal Bare Drive ST6000DM001 ST6000DM001 | 6TB | CMR | 135 | Link |
| $23.13 | WD Western Digital 12TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD120EFGX WD120EFGX | 12TB | CMR | 278 | Link |
| $23.99 | WD Western Digital WD Gold 16 to (WD161KRYZ) WD161KRYZ | 16TB | CMR | 344 | Link |
| $24.26 | HGST HGST 0F27453 Ultrastar He10 HUH721010ALE601 10TB 3.5" SATA 6Gb/s Internal Hard Drive HUH721010ALE601 | 10TB | CMR | 234 | Link |
| $24.44 | WD 16T Helium Enterprise Server Monitoring NAS Hard Disk WUH721816ALE6L4 16TB WUH721816ALE6L4 | 16TB | CMR | 374 | Link |
| $24.75 | Seagate Genuine ST20000NT001 Pro 20TB 7200RPM SATA 6Gb/s 3.5" NAS HDD Original ST20000NT001 | 20TB | CMR | 495 | Link |
| $24.92 | Toshiba Toshiba MG Series Enterprise 12TB 3.5’’ SATA 6Gbit/s Internal HDD 7200RPM 550TB/year 24/7 Operation. MG07ACA12TE MG07ACA12TE | 12TB | CMR | 299 | Link |
| $24.93 | WD Western Digital 14TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD140PURZ WD140PURZ | 14TB | CMR | 349 | Link |
| $25 | WD Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" -WD40EFPX WD40EFPX | 4TB | CMR | 100 | Link |
| $26.25 | Seagate 12TB 7200RPM SATA 6Gb/s 3.5" NAS HDD ST12000NE0008 ST12000NE0008 | 12TB | CMR | 315 | Link |
| $26.95 | Seagate Seagate - ST8000VX004 Skyhawk ST8000VX004 8 TB Hard Drive - 3.5 Internal - SATA (SATA/600) - Video Surveillance System, Network Video Recorder Device Supported - 256 MB Buffer ST8000VX004 | 8TB | CMR | 216 | Link |
| $27.33 | WD Western Digital 12TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD121PURZ WD121PURZ | 12TB | CMR | 328 | Link |
| $27.93 | Toshiba PNTQOKGQX Used Internal Hard Drive HDD 14TB MG Series Enterprise 3.5 256MB Cache SATA Internal Hard Drive MG07ACA14TE MG07ACA14TE | 14TB | CMR | 260 | Link |
| $28.29 | Seagate ST8000NM0055 Server Hard Disk 8T 7.2K SATA 3.5" 256M Hard Drive ST8000NM0055 | 8TB | CMR | 185 | Link |
| $28.9 | WD Western Digital 10TB WD Purple Surveillance Internal Hard Drive - SATA 6 Gb/s, , 256 MB Cache, 3.5" - WD101PURZ (Old Version) WD101PURZ | 10TB | CMR | 289 | Link |
| $29.75 | WD Western Digital 10TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD101PURP WD101PURP | 10TB | CMR | 297 | Link |
| $29.9 | WD 10TB Western Digital WD100EMAZ Hard Drive SATA 6Gb/s 256MB WD100EMAZ | 10TB | CMR | 299 | Link |
| $29.99 | Seagate (Old Model) Seagate 8TB Desktop HDD SATA 6Gb/s NCQ 256MB Cache 7200 RPM 3.5" Internal Bare Drive ST8000DM002 st8000DM002 | 8TB | CMR | 240 | Link |
| $30 | WD Western Digital 3TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD33PURZ WD33PURZ | 3TB | CMR | 90 | Link |
| $30.31 | Seagate Seagate IronWolf ST16000VN001 16 TB Hard Drive - 3.5" Internal - SATA (SATA/600) ST16000VN001 | 16TB | CMR | 485 | Link |
| $31.17 | Seagate ST6000NM0024 3.5‘ SATA 6TB V4 6Gb/s 7200RPM 128MB Hard Drive ST6000NM0024 | 6TB | CMR | 115 | Link |
| $31.25 | Seagate Seagate IronWolf ST12000VN0007 12 TB 3.5 Internal Hard Drive - SATA - 7200rpm - 256 MB Buffer ST12000VN0007 | 12TB | CMR | 375 | Link |
| $31.25 | WD 4TB WD4000FYYZ RE4 SATA 7200 RPM 64MB 3.5IN 6GB/S WD4000FYYZ | 4TB | CMR | 90 | Link |
| $31.67 | HGST WESTERN DI - WD Ultrastar DC HC320 HUS728T8TALE6L4 - - 0B36404 0B36404 | 6TB | CMR | 190 | Link |
| $32.14 | WD Western Digital 14TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD140EFGX WD140EFGX | 14TB | CMR | 450 | Link |
| $32.25 | WD Western Digital 4TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD40EFAX WD40EFAX | 4TB | SMR | 129 | Link |
| $32.91 | WD Western Digital 2 TB 3.5-Inch Desktop Mainstream WDBH2D0020HNC-NRSN WDBH2D0020HNC | 2TB | SMR | 66 | Link |
| $33.17 | Toshiba Toshiba 6TB Enterprise Internal Hard Drive – MG Series 3.5" SATA HDD Mainstream Server and Storage, 24/7 Reliable Operation, Hyperscale and Cloud Storage (MG06ACA600E) mg06aca600e | 6TB | CMR | 199 | Link |
| $33.45 | WD Western Digital 10TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD100EFAX (Old Version) WD100EFAX | 10TB | CMR | 334 | Link |
| $35 | WD Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD30EFZX WD30EFZX | 3TB | CMR | 105 | Link |
| $35 | WD Western Digital 3TB WD Blue PC Internal Hard Drive HDD - 5400 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD30EZAZ WD30EZAZ | 3TB | SMR | 105 | Link |
| $35 | WD Genuine WD60PURX 6TB 3.5TH SATA600 5400RPM HDD Original WD60PURX | 6TB | CMR | 174 | Link |
| $35.26 | WD Western Digital 3TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD30EFAX WD30EFAX | 3TB | SMR | 106 | Link |
| $35.33 | WD WD30EFRX-68EUZN0, DCM HARNHTJMA, Western Digital 3TB SATA 3.5 Hard Drive WD30EFRX | 3TB | CMR | 106 | Link |
| $35.83 | wd Western Digital 6TB WD Red Plus NAS Internal Hard Drive HDD - 5640 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD60EFZX WD60EFZX | 6TB | CMR | 215 | Link |
| $35.86 | Synology Synology HAT5300-12T 12 TB Hard Drive - 3.5" Internal - SATA (SATA/600) HAT5300-12T | 12TB | CMR | 424 | Link |
| $36.25 | WD WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4001FFSX WD4001FFSX | 4TB | CMR | 145 | Link |
| $36.43 | WD Western Digital 8TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8004FRYZ WD8004FRYZ | 8TB | CMR | 291 | Link |
| $36.67 | Seagate Seagate 6TB IronWolf NAS SATA 6Gb/s NCQ 128MB Cache 3.5-Inch Internal Hard Drive (ST6000VN0041) st6000vn0041 | 6TB | CMR | 220 | Link |
| $37.15 | WD WD Gold 10TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD101KRYZ WD101KRYZ | 10TB | CMR | 371 | Link |
| $39.03 | Seagate Seagate Hard Drive ST10000VE001 - Brand EAN: 5415247286028 ST10000VE001 | 10TB | CMR | 390 | Link |
| $39.17 | WD Western Digital 6TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD6003FFBX WD6003FFBX | 6TB | CMR | 235 | Link |
| $39.35 | Seagate Seagate SkyHawk 10TB Surveillance Hard Drive - SATA 6Gb/s 256MB Cache 3.5-Inch Internal Drive (ST10000VX0004) ST10000VX0004 | 10TB | CMR | 394 | Link |
| $39.37 | Synology HAT5300-8T HAT5300-8T | 8TB | CMR | 315 | Link |
| $40 | WD Western Digital 8TB WD Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8001FZBX WD8001FZBX | 8TB | CMR | 320 | Link |
| $40.22 | WD WD Green 6TB 3.5-Inch SATA 6.0Gb/s IntelliPower 64MB Cache Hard Drive (WD60EZRX) WD60EZRX | 6TB | CMR | 241 | Link |
| $40.29 | Seagate ST16000NM001G Enterprise Hard Disk 16T 7.2K SATA 3.5" Hard Drive ST16000NM001G | 16TB | CMR | 645 | Link |
| $40.5 | WD Western Digital 2TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD20PURZ WD20PURZ | 2TB | CMR | 81 | Link |
| $40.56 | Seagate Seagate IronWolf Pro ST8000NE001 8 TB Hard Drive - 3.5" Internal - SATA (SATA/600) ST8000NE001 | 8TB | CMR | 300 | Link |
| $40.92 | Seagate IMS Spare - Seagate-IMSourcing Barracuda 7200.14 ST2000DM001 2 TB 3.5" Internal Hard Drive - 7200rpm ST2000DM001 | 2TB | SMR | 68 | Link |
| $41.29 | WD Western Digital 6TB WD Black Performance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6003FZBX WD6003FZBX | 6TB | CMR | 248 | Link |
| $43.53 | Seagate Seagate Exos 7E8 4TB Internal Hard Drive Enterprise HDD – 3.5 Inch 512n SATA 6Gb/s, 7200RPM, 256MB Cache – Frustration Free Packaging (ST4000NM000A) st4000nm000a | 4TB | CMR | 174 | Link |
| $44.55 | WD WD201KFGX Hard Disk Drive, 20TB Red Pro NAS Hard Drive WD201KFGX | 20TB | CMR | 891 | Link |
| $44.9 | Seagate Seagate ST2000VX015 3.5 in. 256 MB & 2TB Skyhawk Lite Surveillance Internal Hard Drive HDD ST2000VX015 | 2TB | SMR | 90 | Link |
| $45.78 | Seagate 10TB SATA ST10000NE0008 7200rpm 256MB 3.5" Hard Drive ST10000NE0008 | 10TB | CMR | 399 | Link |
| $46 | WD Wd Wd2000f9yz 2 Tb 3.5" Internal Hard Drive . Sata . 7200 Rpm . 64 Mb Buffer "Product Type: Storage Drives/Hard Drives/Solid State Drives" Wd2000f9yz | 2TB | CMR | 92 | Link |
| $47.5 | WD Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX WD4003FFBX | 4TB | CMR | 190 | Link |
| $48.33 | WD WD Purple 3TB Surveillance Hard Disk Drive -5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch Model WD30PURX WD30PURX | 3TB | CMR | 88 | Link |
| $48.33 | WD WD SE 3TB Datacenter Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD3000F9YZ WD3000F9YZ | 3TB | CMR | 145 | Link |
| $48.48 | WD Western Digital 6TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD6003FRYZ WD6003FRYZ | 6TB | CMR | 291 | Link |
| $49.67 | WD Brand New Wd Bulk Wd Re Wd3001fyyg 3 Tb 3.5" Internal Hard Drive WD3001FYYG | 3TB | SMR | 149 | Link |
| $49.83 | WD WD Red Pro 6TB 3.5-Inch SATA III 7200rpm 128MB Cache NAS Internal Hard Drive (WD6002FFWX) WD6002FFWX | 6TB | CMR | 299 | Link |
| $50 | Toshiba Toshiba Enterprise MG06ACA800E 3.5 8TB 256MB 7200RPM Internal Hard Drive MG06ACA800E | 8TB | CMR | 225 | Link |
| $50 | WD Genuine WD40PURX 4TB 5400RPM 64MB SATA 6GB/S 3.5 Hard Drive Original WD40PURX | 4TB | CMR | 114 | Link |
| $50.25 | WD WD121PURP 12TB Purple Pro Hard Disk Drive WD121PURP | 12TB | CMR | 588 | Link |
| $50.83 | Seagate Seagate ST6000VN0033 Iron Wolf Multimedia Server Storage 6TB Internal Hard Drive 3.5" - SATA ST6000VN0033 | 6TB | CMR | 305 | Link |
| $53.75 | WD Western Digital 4TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD4003FRYZ WD4003FRYZ | 4TB | CMR | 215 | Link |
| $55 | WD Western Digital WD20EZRZ 2TB BLUE SATA 5400 RPM 64MB 6GB/S 3.5IN PC HARD DRIVE wd20ezrz | 2TB | CMR | 67 | Link |
| $55 | Toshiba TOSHIBA 2TB 3.5INCH SATA600 7200RPM Refurbished, DT01ACA200-RFB (Refurbished 512E HDD) DT01ACA200 | 2TB | CMR | 74 | Link |
| $55 | WD WD42PURZ – 4TB Surveillance Hard Disk Drive WD42PURZ | 4TB | CMR | 105 | Link |
| $55.18 | WD Xeniol Hard disk circuit 2060-771852-001 004 wd5000lpvt - (Color: 771852-001) WD5000LPVT | 500GB | CMR | 28 | Link |
| $55.36 | Seagate Seagate 1TB SATA 3.5 BarraCuda SingPk (ST1000DM010) ST1000DM010 | 1TB | SMR | 55 | Link |
| $55.36 | Seagate Seagate 1TB SATA 3.5 BarraCuda SingPk (ST1000DM010) st1000dm010 | 1TB | CMR | 55 | Link |
| $58.64 | Seagate 091K8T ST33000650SS 3T SAS 7.2K 3.5inch ST33000650SS | 3TB | CMR | 48 | Link |
| $58.67 | WD WD64PURZ Surveillance HDD, 6TB WD64PURZ | 6TB | CMR | 160 | Link |
| $59.12 | Seagate ST8000NM000A Enterprise-Class Hard Disk Monitoring Dedicated 8TB 7.2K SATA3 3.5" Hard Drive ST8000NM000A | 8TB | CMR | 249 | Link |
| $59.66 | Seagate ST6000NM0115 6TB SATA3 6Gb/s ST6000NM0115 | 6TB | CMR | 144 | Link |
| $60 | Seagate Seagate Barracuda St500dm002 500 Gb 3.5 Internal Hard Drive - Sata - 7200 RPM - 16 Mb Buffer - Chi ST500DM002 | 500GB | SMR | 30 | Link |
| $62.13 | WD WD84PURZ Purple Surveillance Hard Drive, 8TB WD84PURZ | 8TB | CMR | 229 | Link |
| $62.89 | WD Western Digital 1TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD11PURZ WD11PURZ | 1TB | CMR | 63 | Link |
| $65 | WD Western Digital 1TB WD Blue PC Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD10EZRZ wd10ezrz | 1TB | CMR | 65 | Link |
| $70.87 | HGST HUS726060ALE610 6TB 7200RPM SATA 6Gbps 128MB Cache 3.5 inch HUS726060ALE610 | 6TB | CMR | 193 | Link |
| $76.67 | Toshiba Toshiba S300 4TB Internal Surveillance Hard Drive, 3.5’’ SATA HDD, Supports up to 64 HD Cameras at a 180TB/Year workload (HDWT840UZSVA) HDWT840UZSVA | 4TB | SMR | 307 | Link |
| $81.65 | Seagate 2TB 3.5-inch SATA 6 Gb/s 64MB 5900RPM Surveillance Hard Drive ST2000VX008 ST2000VX008 | 2TB | CMR | 88 | Link |
| $83 | Seagate Seagate Constellation CS 3TB SATA 6.0 3.5" HDD ST3000NC000 ST3000NC000 | 3TB | CMR | 248 | Link |
| $87 | WD WD22PURZ 3.5" Purple Surveillance Hard Drive, 2TB, SATA Gb/s WD22PURZ | 2TB | CMR | 89 | Link |
| $89.99 | WD 2PR7551 - WD Red WD10EFRX 1 TB 3.5quot; Internal Hard Drive WD10EFRX | 1TB | CMR | 90 | Link |
| $94.3 | Seagate 2TB 3.5-inch SATA 6 Gb/s 64MB 7200RPM Surveillance Hard Drive ST2000DM006 ST2000DM006 | 2TB | SMR | 189 | Link |
| $98 | WD WD5000AZLX-00ZR6A0 DCM: DARNHT2CH WMC65 Western Digital 500GB wd5000azlx | 500GB | CMR | 39 | Link |
| $105.98 | WD Western Digital WD5000LPLX-60ZNTT0 DCM: EAOTJBB WX21E 500GB WD5000LPLX | 500GB | CMR | 53 | Link |
| $109.99 | WD WD Black 1TB SATA 6.0 3.5" Desktop HDD WD1003FZEX WD1003FZEX | 1TB | CMR | 110 | Link |
| $110.5 | WD WD Black WD5003AZEX - Hard drive - 500 GB - internal - 3.5" - SATA-600 - 7200 rpm - buffer: 64 MB WD5003AZEX | 500GB | CMR | 55 | Link |
| $119.5 | Seagate 4TB SSD SSHD 3.5" Desktop Hybrid SATA3 64MB Hard Drive ST4000DX001 ST4000DX001 | 4TB | CMR | 478 | Link |
| $122.73 | Seagate Seagate 1TB Pipeline HD SATA 6Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive (ST1000VM002) ST1000VM002 | 1TB | PMR | 45 | Link |
| $129.94 | Toshiba Davitu Remote Controls - 100% in original 1 year warranty MG03ACA400 4TB 720PRM 64M SATA3 Need more pictures, please contact me mg03aca400 | 4TB | CMR | 110 | Link |
| $153.5 | WD WD2005FBYZ Gold Enterprise Class SATA HDD, 7200RPM, 6GB/S, 128MB, 2TB WD2005FBYZ | 2TB | CMR | 185 | Link |
| $223.13 | WD PHDD-2900 - WD WD8002FRYZ 8TB 3.5" Hard Disk Drive, 7200 RPM, 128MB Cache WD8002FRYZ | 8TB | CMR | 394 | Link |
| $580.03 | Seagate ZBVRFJMK ZP1000GV3A012 ZP2000GM3A023 ZP2000GM3A013 ZP1000GM3A023 ST1000LM048 ZP4000GM3A013 ZP2000GM30013(ZP2000GM30013) ST1000LM048 | 1TB | SMR | 304 | Link |
| $42746.25 | WD Western Digital WD Red Pro Internal HDD 8TB CMR 3.5 inch SATA 7200 RPM Cache 256MB NAS HelioSeal WD8005FFBX-AJP Eco Package WD8005FFBX | 8T | CMR | 225 | Link |
What is the cost of 0.008TB drive?
The price of the cheapest drive is $224.99 [US]
What is the cost of 500GB drive?
The price of the cheapest drive is £28.99 [UK] $27.59 [US]
What is the cost of 1TB drive?
The price of the cheapest drive is £27.99 [UK] $45 [US]
What is the cost of 2TB drive?
The price of the cheapest drive is £60.99 [UK] $38.98 [US]
What is the cost of 3TB drive?
The price of the cheapest drive is £70 [UK] $48 [US]
What is the cost of 4TB drive?
The price of the cheapest drive is £71.83 [UK] $75 [US]
What is the cost of 6TB drive?
The price of the cheapest drive is £123.99 [UK] $115 [US]
What is the cost of 8TB drive?
The price of the cheapest drive is £138.79 [UK] $184.99 [US]
What is the cost of 10TB drive?
The price of the cheapest drive is £292 [UK] $199.99 [US]
What is the cost of 12TB drive?
The price of the cheapest drive is £239.29 [UK] $249.99 [US]
What is the cost of 14TB drive?
The price of the cheapest drive is £260 [UK] $259.99 [US]
What is the cost of 16TB drive?
The price of the cheapest drive is £325 [UK] $344 [US]
What is the cost of 18TB drive?
The price of the cheapest drive is £365 [UK] $356.99 [US]
What is the cost of 20TB drive?
The price of the cheapest drive is £450 [UK] $495 [US]
What is the cost of 250GB drive?
The price of the cheapest drive is £40.55 [UK]
What is the cost of 320GB drive?
The price of the cheapest drive is £26.95 [UK]
What is the cost of 750GB drive?
The price of the cheapest drive is £109 [UK]
What is the cost of 1.5TB drive?
The price of the cheapest drive is £183.92 [UK]
What is the cost of 5TB drive?
The price of the cheapest drive is £129.99 [UK]
How much can 0.008TB hold?
0.008TB can hold around
2667 MP3 songs
OR 1600 5MB Photos
OR 533 FLAC audio files
OR 11 HD Movies or Audio CDs
OR 1 4K Movies or DVDs
OR 0 Blu-ray
OR 0.01 Surveillance cameras (30 days)
How much can 500GB hold?
500GB can hold around
166667 MP3 songs
OR 100000 5MB Photos
OR 33333 FLAC audio files
OR 714 HD Movies or Audio CDs
OR 59 4K Movies or DVDs
OR 10 Blu-ray
OR 0.5 Surveillance cameras (30 days)
How much can 1TB hold?
1TB can hold around
333333 MP3 songs
OR 200000 5MB Photos
OR 66667 FLAC audio files
OR 1429 HD Movies or Audio CDs
OR 118 4K Movies or DVDs
OR 20 Blu-ray
OR 1 Surveillance cameras (30 days)
How much can 2TB hold?
2TB can hold around
666667 MP3 songs
OR 400000 5MB Photos
OR 133333 FLAC audio files
OR 2857 HD Movies or Audio CDs
OR 235 4K Movies or DVDs
OR 40 Blu-ray
OR 2 Surveillance cameras (30 days)
How much can 3TB hold?
3TB can hold around
1000000 MP3 songs
OR 600000 5MB Photos
OR 200000 FLAC audio files
OR 4286 HD Movies or Audio CDs
OR 353 4K Movies or DVDs
OR 60 Blu-ray
OR 3 Surveillance cameras (30 days)
How much can 4TB hold?
4TB can hold around
1333333 MP3 songs
OR 800000 5MB Photos
OR 266667 FLAC audio files
OR 5714 HD Movies or Audio CDs
OR 471 4K Movies or DVDs
OR 80 Blu-ray
OR 4 Surveillance cameras (30 days)
How much can 6TB hold?
6TB can hold around
2000000 MP3 songs
OR 1200000 5MB Photos
OR 400000 FLAC audio files
OR 8571 HD Movies or Audio CDs
OR 706 4K Movies or DVDs
OR 120 Blu-ray
OR 6 Surveillance cameras (30 days)
How much can 8TB hold?
8TB can hold around
2666667 MP3 songs
OR 1600000 5MB Photos
OR 533333 FLAC audio files
OR 11429 HD Movies or Audio CDs
OR 941 4K Movies or DVDs
OR 160 Blu-ray
OR 8 Surveillance cameras (30 days)
How much can 10TB hold?
10TB can hold around
3333333 MP3 songs
OR 2000000 5MB Photos
OR 666667 FLAC audio files
OR 14286 HD Movies or Audio CDs
OR 1176 4K Movies or DVDs
OR 200 Blu-ray
OR 10 Surveillance cameras (30 days)
How much can 12TB hold?
12TB can hold around
4000000 MP3 songs
OR 2400000 5MB Photos
OR 800000 FLAC audio files
OR 17143 HD Movies or Audio CDs
OR 1412 4K Movies or DVDs
OR 240 Blu-ray
OR 12 Surveillance cameras (30 days)
How much can 14TB hold?
14TB can hold around
4666667 MP3 songs
OR 2800000 5MB Photos
OR 933333 FLAC audio files
OR 20000 HD Movies or Audio CDs
OR 1647 4K Movies or DVDs
OR 280 Blu-ray
OR 14 Surveillance cameras (30 days)
How much can 16TB hold?
16TB can hold around
5333333 MP3 songs
OR 3200000 5MB Photos
OR 1066667 FLAC audio files
OR 22857 HD Movies or Audio CDs
OR 1882 4K Movies or DVDs
OR 320 Blu-ray
OR 16 Surveillance cameras (30 days)
How much can 18TB hold?
18TB can hold around
6000000 MP3 songs
OR 3600000 5MB Photos
OR 1200000 FLAC audio files
OR 25714 HD Movies or Audio CDs
OR 2118 4K Movies or DVDs
OR 360 Blu-ray
OR 18 Surveillance cameras (30 days)
How much can 20TB hold?
20TB can hold around
6666667 MP3 songs
OR 4000000 5MB Photos
OR 1333333 FLAC audio files
OR 28571 HD Movies or Audio CDs
OR 2353 4K Movies or DVDs
OR 400 Blu-ray
OR 20 Surveillance cameras (30 days)
How much can 250GB hold?
250GB can hold around
83333 MP3 songs
OR 50000 5MB Photos
OR 16667 FLAC audio files
OR 357 HD Movies or Audio CDs
OR 29 4K Movies or DVDs
OR 5 Blu-ray
OR 0.25 Surveillance cameras (30 days)
How much can 320GB hold?
320GB can hold around
106667 MP3 songs
OR 64000 5MB Photos
OR 21333 FLAC audio files
OR 457 HD Movies or Audio CDs
OR 38 4K Movies or DVDs
OR 6 Blu-ray
OR 0.32 Surveillance cameras (30 days)
How much can 500GB hold?
500GB can hold around
166667 MP3 songs
OR 100000 5MB Photos
OR 33333 FLAC audio files
OR 714 HD Movies or Audio CDs
OR 59 4K Movies or DVDs
OR 10 Blu-ray
OR 0.5 Surveillance cameras (30 days)
How much can 750GB hold?
750GB can hold around
250000 MP3 songs
OR 150000 5MB Photos
OR 50000 FLAC audio files
OR 1071 HD Movies or Audio CDs
OR 88 4K Movies or DVDs
OR 15 Blu-ray
OR 0.75 Surveillance cameras (30 days)
How much can 1TB hold?
1TB can hold around
333333 MP3 songs
OR 200000 5MB Photos
OR 66667 FLAC audio files
OR 1429 HD Movies or Audio CDs
OR 118 4K Movies or DVDs
OR 20 Blu-ray
OR 1 Surveillance cameras (30 days)
How much can 1.5TB hold?
1.5TB can hold around
500000 MP3 songs
OR 300000 5MB Photos
OR 100000 FLAC audio files
OR 2143 HD Movies or Audio CDs
OR 176 4K Movies or DVDs
OR 30 Blu-ray
OR 1.5 Surveillance cameras (30 days)
How much can 2TB hold?
2TB can hold around
666667 MP3 songs
OR 400000 5MB Photos
OR 133333 FLAC audio files
OR 2857 HD Movies or Audio CDs
OR 235 4K Movies or DVDs
OR 40 Blu-ray
OR 2 Surveillance cameras (30 days)
How much can 3TB hold?
3TB can hold around
1000000 MP3 songs
OR 600000 5MB Photos
OR 200000 FLAC audio files
OR 4286 HD Movies or Audio CDs
OR 353 4K Movies or DVDs
OR 60 Blu-ray
OR 3 Surveillance cameras (30 days)
How much can 4TB hold?
4TB can hold around
1333333 MP3 songs
OR 800000 5MB Photos
OR 266667 FLAC audio files
OR 5714 HD Movies or Audio CDs
OR 471 4K Movies or DVDs
OR 80 Blu-ray
OR 4 Surveillance cameras (30 days)
How much can 5TB hold?
5TB can hold around
1666667 MP3 songs
OR 1000000 5MB Photos
OR 333333 FLAC audio files
OR 7143 HD Movies or Audio CDs
OR 588 4K Movies or DVDs
OR 100 Blu-ray
OR 5 Surveillance cameras (30 days)
How much can 6TB hold?
6TB can hold around
2000000 MP3 songs
OR 1200000 5MB Photos
OR 400000 FLAC audio files
OR 8571 HD Movies or Audio CDs
OR 706 4K Movies or DVDs
OR 120 Blu-ray
OR 6 Surveillance cameras (30 days)
How much can 8TB hold?
8TB can hold around
2666667 MP3 songs
OR 1600000 5MB Photos
OR 533333 FLAC audio files
OR 11429 HD Movies or Audio CDs
OR 941 4K Movies or DVDs
OR 160 Blu-ray
OR 8 Surveillance cameras (30 days)
How much can 10TB hold?
10TB can hold around
3333333 MP3 songs
OR 2000000 5MB Photos
OR 666667 FLAC audio files
OR 14286 HD Movies or Audio CDs
OR 1176 4K Movies or DVDs
OR 200 Blu-ray
OR 10 Surveillance cameras (30 days)
How much can 12TB hold?
12TB can hold around
4000000 MP3 songs
OR 2400000 5MB Photos
OR 800000 FLAC audio files
OR 17143 HD Movies or Audio CDs
OR 1412 4K Movies or DVDs
OR 240 Blu-ray
OR 12 Surveillance cameras (30 days)
How much can 14TB hold?
14TB can hold around
4666667 MP3 songs
OR 2800000 5MB Photos
OR 933333 FLAC audio files
OR 20000 HD Movies or Audio CDs
OR 1647 4K Movies or DVDs
OR 280 Blu-ray
OR 14 Surveillance cameras (30 days)
How much can 16TB hold?
16TB can hold around
5333333 MP3 songs
OR 3200000 5MB Photos
OR 1066667 FLAC audio files
OR 22857 HD Movies or Audio CDs
OR 1882 4K Movies or DVDs
OR 320 Blu-ray
OR 16 Surveillance cameras (30 days)
How much can 18TB hold?
18TB can hold around
6000000 MP3 songs
OR 3600000 5MB Photos
OR 1200000 FLAC audio files
OR 25714 HD Movies or Audio CDs
OR 2118 4K Movies or DVDs
OR 360 Blu-ray
OR 18 Surveillance cameras (30 days)
How much can 20TB hold?
20TB can hold around
6666667 MP3 songs
OR 4000000 5MB Photos
OR 1333333 FLAC audio files
OR 28571 HD Movies or Audio CDs
OR 2353 4K Movies or DVDs
OR 400 Blu-ray
OR 20 Surveillance cameras (30 days)
Actual size of 0.008TB drive?
0.008TB HDD can have around 7 GB usable storage space
Actual size of 500GB drive?
500GB HDD can have around 466 GB usable storage space
Actual size of 1TB drive?
1TB HDD can have around 931 GB usable storage space
Actual size of 2TB drive?
2TB HDD can have around 1.863 TB usable storage space
Actual size of 3TB drive?
3TB HDD can have around 2.794 TB usable storage space
Actual size of 4TB drive?
4TB HDD can have around 3.725 TB usable storage space
Actual size of 6TB drive?
6TB HDD can have around 5.588 TB usable storage space
Actual size of 8TB drive?
8TB HDD can have around 7.451 TB usable storage space
Actual size of 10TB drive?
10TB HDD can have around 9.313 TB usable storage space
Actual size of 12TB drive?
12TB HDD can have around 11.176 TB usable storage space
Actual size of 14TB drive?
14TB HDD can have around 13.039 TB usable storage space
Actual size of 16TB drive?
16TB HDD can have around 14.901 TB usable storage space
Actual size of 18TB drive?
18TB HDD can have around 16.764 TB usable storage space
Actual size of 20TB drive?
20TB HDD can have around 18.626 TB usable storage space
Actual size of 250GB drive?
250GB HDD can have around 233 GB usable storage space
Actual size of 320GB drive?
320GB HDD can have around 298 GB usable storage space
Actual size of 500GB drive?
500GB HDD can have around 466 GB usable storage space
Actual size of 750GB drive?
750GB HDD can have around 698 GB usable storage space
Actual size of 1TB drive?
1TB HDD can have around 931 GB usable storage space
Actual size of 1.5TB drive?
1.5TB HDD can have around 1.397 TB usable storage space
Actual size of 2TB drive?
2TB HDD can have around 1.863 TB usable storage space
Actual size of 3TB drive?
3TB HDD can have around 2.794 TB usable storage space
Actual size of 4TB drive?
4TB HDD can have around 3.725 TB usable storage space
Actual size of 5TB drive?
5TB HDD can have around 4.657 TB usable storage space
Actual size of 6TB drive?
6TB HDD can have around 5.588 TB usable storage space
Actual size of 8TB drive?
8TB HDD can have around 7.451 TB usable storage space
Actual size of 10TB drive?
10TB HDD can have around 9.313 TB usable storage space
Actual size of 12TB drive?
12TB HDD can have around 11.176 TB usable storage space
Actual size of 14TB drive?
14TB HDD can have around 13.039 TB usable storage space
Actual size of 16TB drive?
16TB HDD can have around 14.901 TB usable storage space
Actual size of 18TB drive?
18TB HDD can have around 16.764 TB usable storage space
Actual size of 20TB drive?
20TB HDD can have around 18.626 TB usable storage space
CMR VS SMR You can filter CMR drives only if you need better performance (more info). SMR drives are acceptable in RAID1/0 or no raid setup.
Seagate VS WD You can go brand specific such as Seagate, WD, and Toshiba. WD might offer things like OptiNAND
Home vs Business You can also choose a specific type of drives such as for home use you would use a filter (WD Red or Ironwolf. For business use in a NAS with 8 bays and above filter would look like WD RED Pro or Ironwolf Pro. For enterprise drives, you would choose Exos, HGST, Gold or Ultrastar. For surveillance, you would choose a filter “purple” or “Surveillance”. For simple desktop use you would choose Barracuda, Black or Blue drives. The colours are explained here.
6TB vs 8TB You may choose bigger capacity drives if you have fewer drive bays on your NAS. This limits your options for mixing drives smarter way. You might realise that bigger drives but fewer of them can actually be cheaper than smaller drives that use every drive bay.
Get an alert every time something gets added to this specific article!
HDD Price per TB (best cost Hard Drives). Is it better to get bigger size drives or smaller drives but more of them to achieve desired storage space?
Yes, this is a popular question. Especially with bigger size hard drives. Those drives tend to be much more expensive per terabyte. It is often cheaper to get an additional drive which is smaller and gain the same total capacity (using two or 3 drives) cheaper.
How to calculate price per GB / TB?
How do I find the actual hard drive size?
The hard drive capacity calculation method of Manufacturer is: 120GB=120,000MB=120,000,000KB=120,000,000,000 bytes; while the hard drive capacity calculation method of is: 120,000,000,000 bytes/1024=117,187,500KB/1024=114, 440.9MB/1024=111.8GB.
| Where to Buy a Product | |||
|
|
![]() ![]() ![]() ![]()
|
|
VISIT RETAILER ➤ |
![]() |
![]() ![]() ![]() ![]()
|
|
VISIT RETAILER ➤ |
![]() |
![]() ![]() ![]() ![]()
|
|
VISIT RETAILER ➤ |
![]() |
![]() ![]() ![]() ![]()
|
|
VISIT RETAILER ➤ |
We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you. Anything you purchase on the day you click on our links will generate a small commission which is used to run the website. Here is a link for Amazon and B&H. You can also get me a ☕ Ko-fi or old school Paypal. Thanks! To find out more about how to support this advice service check HERE
Should You Worry About the NanoKVM Hidden Microphone?
Best Cheap NAS of 2025
Minisforum MS-02 Ultra - WHO IS THIS FOR??? (The First 48HRs)
Why People Use TrueNAS, UnRAID and Proxmox to Turnkey NAS (Synology, QNAP, etc)
Why People Prefer Turnkey NAS vs TrueNAS, UnRAID and More
The Top 5 Mistakes NAS Buyers Make
Access content via Patreon or KO-FI
Discover more from NAS Compares
Subscribe to get the latest posts sent to your email.












What’s the 3 Best HDD for a DAS enclosure with RAID
WD Red plus, Ironwolf for up to 8 bays. Red Pro, Gold, Ironwolf Pro, Exos for 8 + bays.
Can somebody please help me.
I have a QNAP NAS with 4 x 10TB SG IronWolf + a 500GB M.2 (cache) in a raid 6.
Sometimes drive performance seems to be quite slow (< 30MBytes per sec) If I add 1 or 2 HDDs (nas max is 6 HDDs + 2 M.2s) will it improve, reduce or not effect performance? Thanks <3
REPLY ON YOUTUBE
Can somebody please help me.
I have a QNAP NAS with 4 x 10TB SG IronWolf + a 500GB M.2 (cache) in a raid 6.
Sometimes drive performance seems to be quite slow (< 30MBytes per sec) If I add 1 or 2 HDDs (nas max is 6 HDDs + 2 M.2s) will it improve, reduce or not effect performance? Thanks <3
REPLY ON YOUTUBE
If you really wanted the best price of course you would buy used. But I get that there is no affiliate income in that suggestion. So I’ll just say it here.
REPLY ON YOUTUBE
I picked up 4x WD UltraStar DC HC550 16TB for my raid at just under $14/TB. I think I did pretty good.
REPLY ON YOUTUBE
This tool really highlights how the UK is paying more per TB than the US.
REPLY ON YOUTUBE
I think your videos and reviews are excellent, and the hard drive pricing comparison tool looks very useful (thank you), BUT, I was staggered when I visited the nascompares website and opened the Vendor Preferences section of the cookies permissions…more than 1500 (yes, one thousand five hundred !!!) “Legitimate Interest” and other cookie permissions which seemingly can only be turned off (or activated, if that’s what the website visitor wants to do) MANUALLY. Yes, it took a looong time. Please, just provide a simple and all-encompassing “Reject All” option in cookie preferences. Cookies should be (IMO) opt-in. not ‘gotcha’.
REPLY ON YOUTUBE
Wow that’s super useful! I wish it also did Europe but I get that’s probably pretty tricky to do.
REPLY ON YOUTUBE
Do you have a video on different ways to migrate to a new NAS with same/different bays. Maybe you could add to the tool a migration option that can calculate the least number of drives / steps required e.g. go from raid 5 to raid 1 larger drives and then reuse the raid 5 drives once migrated. Hopefully this makes sense. What do people do with old working drives?
REPLY ON YOUTUBE
Cool
REPLY ON YOUTUBE
@NASCompares
I hope you will be able and willing to answer my question. I have a DS218+ with 2 8TB seagate iron wolf harddrives. I want to have an upgrade so I’m buying a DS420+ nas and 2 18TB seagate iron wolf harddrives. My plan is to replace my 2bay synology to the new 4bay synology and I want to know if I can just put the 2 8TB drives into the new synology and then also add the 2 new 18TB drive in bay 3 and 4..
I want all of them to be configured with SHR and the 2 8TB drives are already in SHR. According to the synology website (the nas RAID calculater) it tells me that with my setup (2x 8Tb and 2x 18TB) I should get 32TB available space and 16TB Protection.
So.. can I just take the 2 older 8TB drives (in SHR) out of my 2bay synology and put them together with the 2 18Tb drives into the new 4 bay synology without losing my data or without having to figure out a way to transfer the data off the drives first.. I do not have the external drive space to temporary store 8Tb worth of data. I don’t really care all that much about any settings from my old nas, all I want is to keep all my own data safe when transferring to the new nas.
REPLY ON YOUTUBE
Price per TB crossed tabbed with with Mtbf [actual], size and noise, are the items I try to balance.
REPLY ON YOUTUBE
What’s better for the NAS HDD’s health: keep the NAS running all the time, or turn it on only when needed?
I use it maybe 3 times per week, for about 4 hours each time.
REPLY ON YOUTUBE
Can I shuck 12tb wd my book external drives for a nas that i plan to build, they are 40% cheaper than the cheapest 12tb nas drive.
REPLY ON YOUTUBE
Looks a bit messy on iPad. Be nice to have a mobile version of the tool so it’s easier to use. Maybe you could follow in Money Saving Expert footsteps and creat a dedicated app for your site
REPLY ON YOUTUBE
Didn’t quite think things through enough when I ordered drives for my first NAS. Had to decide between Synology IronWolf, and WD Red (not Pro or Plus). Ended up going with the standard Red based on some reviews that weren’t quite… complete. So now I have a drive that isn’t officially supported and for a reason I still don’t quite understand is just worse in the long run than the IronWolf. All of this because I wanted to save 15€
REPLY ON YOUTUBE
I went with Raid5 – 4 x 18tb drives for my 4 bay for best price, reliability, space balance for me. Seagate x18 drives at $15 per TB.
REPLY ON YOUTUBE
No offense to the work you’ve put in on this tool, but none of your calculators have ever worked for me. Disabling ad blocker and different browsers, just doesn’t work. Not sure what I’m doing wrong. ????????♂
REPLY ON YOUTUBE
Even better! ????????????
REPLY ON YOUTUBE
Funny you posted this. I’ve actually been comparing prices all morning. Idc about noise I just want reliability/capacity.
REPLY ON YOUTUBE
Kewllll
REPLY ON YOUTUBE
Thank you guys!!! Anestis from Greece here, just got my first NAS, a Qnap 464, thanks to your recommendations for 4bay Nas and now trying to decide what kind of hard drives to buy. I need a lot of space (50tb to 60tb) usable space in RAID5 and the cost is very high. Do you think that Ultrastar series is suitable for my case? I’m going to use my NAS for multimedia library and PC backup mainly. THANKS AGAIN for your great articles and useful videos!!!
REPLY ON YOUTUBE
It would be great if you did the same for shucked drives. Many Synology users use them. Frankly, I have one server with (7) 14TB drives and another with (6) and not a peep about them for over two years so far. Still healthy. ????
REPLY ON YOUTUBE
One thing I would add, is an actual $/TB column, as it helps to work out Amazon’s sales versus other retailers during various promotional periods.
REPLY ON YOUTUBE
I think reliability and loudness would be the big secondary factors. My nas is my office where I work from home, those exos drives probably too loud?
REPLY ON YOUTUBE
This video + That tool Eddie Created = You guys are awesome!
REPLY ON YOUTUBE
Your timeline/chapter markers in comments are messed up sir.
REPLY ON YOUTUBE
Nice tool!
Thanks Eddie! (and Robbie, of course)
And that in the weekend! Wow.
Even Though it is not (yet?) including my region, still quite useful.
REPLY ON YOUTUBE
Thank you very much. This is exactly what I can use. Have a great weekend
REPLY ON YOUTUBE
Ty for this. I have a ext4 shr2 raid in synology, and am considering getting a newer model and using that to switch from ext4 to btrfs… I wish there was an easy way to switch between ext4 and btrfs without new drives… but I may just expand my drive sizes at the same time as transitioning from ext4.
REPLY ON YOUTUBE