SSD Real Usable Capacity (TB vs TiB) & TBW Lifespan Calculator
Calculate the exact usable GiB space in Windows Disk Management, the exact MB required for integer partition sizes, and estimated NAND flash lifespan in years based on manufacturer TBW ratings.
Parameters & Controls
Telemetry Console & Results
On a 1000 GB marketed drive
Capacidad_GiB = (1000 × 10⁹) ÷ (1024³) = 931.32 GiB
Precalculated Engineering Configurations & Benchmarks
Direct access to high-intent hardware and game configurations with verified mathematical solutions:
1 TB SSD Real Usable Capacity in Windows (931 GiB)
Understand why a 1000 GB SSD reports only 931.32 GiB in Windows. Decimal vs binary math explained and exact partition sizing.
600 TBW SSD Lifespan: How Many Years Will It Last?
Calculate the lifespan in years of a 600 TBW NVMe SSD based on daily write volume. At 50 GB/day a 600 TBW SSD endures over 30 years.
Why does a 1 TB SSD show only 931 GB in Windows? Storage manufacturers advertise capacity using the International System of Units (SI Decimal), where 1 TB = 10^12 bytes. However, operating systems like Microsoft Windows allocate clusters using binary arithmetic (IEC Binary), where 1 GiB = 1024^3 bytes. The difference is purely mathematical, not defective storage.
Authoritative Standards & Scientific Documentation:
IEC 80000-13: Quantities and Units — Information Science and Technology
Definitive standard establishing binary prefixes (GiB, TiB) vs SI decimal metric prefixes.
JEDEC JESD218A: Solid-State Drive (SSD) Endurance Test Method
Official stress-testing methodology for validating NAND Flash endurance and TBW ratings.
Frequently Asked Technical Questions
What number should I enter in Windows Disk Management for exactly 100 GB?
Enter 102404 MB (100 × 1024 + 4 MB NTFS offset) to make Windows File Explorer report exactly 100.0 GB.