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Byte Conversion Calculator

Convert digital storage between bits, bytes, SI prefixes (kB, MB, GB) and binary prefixes (KiB, MiB, GiB).

Formula shown0 inputs definedFree, no sign-up

Quick Summary

Use this when you need:
  • Check whether a drive manufacturer is quoting decimal GB or binary GiB
  • Convert app download sizes from megabytes to mebibytes for release notes
  • Translate advertised bandwidth in bits per second into the bytes per second a file copy tool will show
You’ll get:Storage

Calculator Tool

How this is calculated

Formula:

storage_target = storage_source * (source_to_bytes / target_to_bytes)

In plain language:

Every storage amount is normalized into bytes, then scaled into the requested unit using the published SI or IEC conversion constants.

The formula is always visible so you can verify the math and explain your numbers to anyone who asks.

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What these terms mean

Storage

Storage used in the calculation.

When to use this calculator

  • Check whether a drive manufacturer is quoting decimal GB or binary GiB
  • Convert app download sizes from megabytes to mebibytes for release notes
  • Translate advertised bandwidth in bits per second into the bytes per second a file copy tool will show
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