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File-size unit converter
Convert between decimal byte units and binary IEC units with explicit units.
Text and numbers
Text
Browser only
Your input and output are processed in this browser. They are not uploaded for processing. No account is required.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the requested values: Size; Input unit.
- Choose Calculate and review the result.
- Download the text result if useful. Reset restores the initial inputs and clears the result.
Examples
1 MiB = 1,048,576 bytes = 1.048576 MB.
Limitations
Runs entirely in your browser. Numeric calculations use IEEE-754 floating-point arithmetic; displayed values are rounded to 15 significant digits unless stated otherwise.
KB/MB/GB use powers of 1000; KiB/MiB/GiB use powers of 1024. Large values can be rounded.
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