Data Size Converter
Convert bytes, KB, MB, GB, and TB (binary or decimal).
About this tool
ISPs and drive makers blur MB vs MiB. This free data size converter switches between bits, bytes, and common storage units. Enter a size, and compare download estimates or disk quotas with clearer unit math.
How to use
- Enter the data size value.
- Choose the source unit and destination unit.
- Note whether the tool uses decimal (1000) or binary (1024) multiples if labeled.
- Copy the converted size into your comparison notes.
Frequently asked questions
Marketing often uses decimal SI units; operating systems may show binary mebibytes. Check which base the converter labels.