Data Size Converter
Convert bytes, KB, MB, GB, TB — decimal and binary.
Reference (in bytes):
How to use the Data Size tool
- Enter your data size in the fields above.
- Adjust any slider or type an exact number — the answer updates as you go.
- Copy the result and close the tab. Nothing you entered was sent anywhere.
About the Data Size tool
Storage vendors use decimal units (1 MB = 1,000,000 bytes) while operating systems often report binary units (1 MiB = 1,048,576 bytes). This converter supports both.
A “500 GB” drive shows as roughly 465 GiB in your OS — that gap is exactly the decimal/binary distinction, not missing space.
Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.
Embed this tool
Customize and copy an iframe. Linking back helps both sites.