Unit Converters

Data Storage Converter

Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes instantly. Shows both SI (1 KB = 1000 bytes) and IEC binary (1 KiB = 1024 bytes) values side by side.

All units update live as you type No sign-up required Browser-only — works offline

Data Storage

Type in any field — all other units update instantly

Features

  • Bits, bytes, KB, MB, GB, TB, PB
  • Shows SI (decimal) and IEC binary simultaneously
  • Handles very large values (exabytes)
  • All units update live as you type
  • Clear labelling: KB vs KiB, GB vs GiB
  • Browser-only, no account needed

How to use it

  1. Enter a value in any unit field.
  2. All SI and IEC binary equivalents appear instantly.
  3. Toggle the base (1000 vs 1024) to compare.

Use cases

  • Understanding hard drive capacity discrepancy (1 TB drive shows as ~931 GiB in OS)
  • Cloud storage pricing calculations
  • Database size estimation for system planning
  • Network bandwidth and data transfer calculations

Limitations

  • Browser processing depends on available device memory for very large inputs.
  • Tool-specific limits based on file format or browser support are noted on each tool page.
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Questions & answers

Frequently asked

Why do storage devices show less capacity than advertised?

Manufacturers use SI (1 GB = 1,000,000,000 bytes) but operating systems use IEC binary (1 GiB = 1,073,741,824 bytes). A 1 TB drive = ~931 GiB as shown by your OS.

What is a gibibyte?

A gibibyte (GiB) is 1024³ = 1,073,741,824 bytes — the binary standard defined by IEC.