🔧 File Size Converter — Bytes, KB, MB, GB
Enter a value and choose units to convert file sizes. Toggle between binary and decimal bases.
Input
Result
Details
Private by design. This tool runs entirely in your browser — nothing you enter or add is uploaded to any server.
How it works
- Enter the number and select source and target units.
- Choose binary (powers of 1024) or decimal (powers of 1000).
- The converted value appears instantly.
Examples
- 1024 KB in binary is exactly 1 MB.
- 1 GB decimal is 1000 MB.
- Useful when comparing storage or download sizes.
Frequently asked questions
Binary vs decimal?
Binary uses 1024 (common in computing), decimal uses 1000 (common in marketing).
Which should I use?
Use binary for actual file sizes on computers, decimal for advertised storage.
Is the conversion private?
Yes. Nothing is sent to a server.
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