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.
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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