IT / General

File Size Calculator

This tool converts storage and file sizes between byte, KB, MB, GB, TB and KiB, MiB, GiB and TiB. It distinguishes decimal units with factor 1000 and binary units with factor 1024.

Convert file size

Enter a value and choose the source unit. The conversion is performed locally in the browser.

Example: 1, 12.5 or 2048.

Ready

Conversion table

For documentation, tickets, emails or technical notes.

Decimal or binary

KB, MB, GB and TB are commonly used as decimal units with factor 1000. KiB, MiB, GiB and TiB are binary units with factor 1024. Therefore 1 GB is not the same as 1 GiB.

  • 1 KB = 1,000 bytes
  • 1 KiB = 1,024 bytes
  • 1 GB = 1,000,000,000 bytes
  • 1 GiB = 1,073,741,824 bytes