Utility
🔒 Offline / On-Device
file size converterbytes to kb
File Size Converter Online
Convert file sizes between bytes, KB, MB, and GB online free. Quick and accurate. 100% client-side, no data uploaded or stored.
| Unit | Converted Value |
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Frequently Asked Questions
How do I convert between file size units?
Enter a value, select the unit (B, KB, MB, GB, or TB), and the table instantly shows the equivalent in all other units.
Does this use decimal or binary units?
The converter uses binary (1024-based) units, which match how operating systems and file managers report file sizes. 1 KB = 1024 bytes, 1 MB = 1024 KB, and so on.
Why do file sizes differ between my OS and websites?
Operating systems use binary (1024-based) units while some websites and hard drive manufacturers use decimal (1000-based) units. This tool uses binary to match your OS.
Can I convert hard drive or download sizes?
Yes. Enter any size value and the table shows conversions across all units. This is useful for understanding download sizes, storage capacity, and memory requirements.