Computer & digital storage converter

Convert disk capacities between every common storage unit. The decimal (SI) forms — kB, MB, GB — are what drive labels show; the binary (IEC) forms — KiB, MiB, GiB — are what operating systems report.

Converter

All units
UnitValue

Real-world reference

  • 1 KB ≈ a paragraph of plain text
  • 1 MB ≈ a high-quality photo
  • 1 GB ≈ 30 minutes of HD video
  • 1 TB ≈ 250 000 photos or 17 hours of 4K video

FAQ

Why does the OS report less storage than the drive label?

The label uses decimal GB (10⁹ bytes), the OS reports binary GiB (2³⁰ bytes). 1 TB drive = 10¹² bytes ≈ 931 GiB.

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