Data Size Converter

Convert decimal KB/MB/GB and binary KiB/MiB/GiB using bytes.

Runs entirely in your browser — your selected files are not uploaded by this tool. Device-provided speech voices may use online services.

About this free data size converter tool

Convert decimal KB/MB/GB and binary KiB/MiB/GiB using bytes. Developer utilities inspect or transform data locally rather than contacting the address or service shown in your input. Use fictional samples while checking a format, keep credentials out of shared screenshots and validate the result against the receiving system. Successful parsing does not establish trust, security or schema correctness.

A practical example

A concrete example uses amount: 1; input unit: KB. The result is Bytes: 1000 KB: 1 MB: 0.001 GB: 0.000001 KiB: 0.9765625 MiB: 0.000953674316406 GiB: 9.31322574615e-7.

Before you rely on the result

Decimal KB/MB/GB use powers of 1,000; binary KiB/MiB/GiB use powers of 1,024. Values describe size, not transfer speed.

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