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File & internet

File Size Converter

Convert binary file-size units from bytes through pebibytes. Nothing you enter leaves your browser.

Enter your values and we’ll calculate the result.

Your result
Enter your values, then calculate.

What this tool does

About the File Size Converter

Convert binary file-size units from bytes through pebibytes. It is designed for quick file and network calculations without sending the selected file to an application server.

The calculation uses file size, and unit.

How to use it

  1. Review the starting values for file size, unit and replace them with your own.
  2. Choose any available units or assumptions, then select “Calculate.”
  3. Read the labeled result, compare another scenario if needed, and copy the output for your notes.

Practical example

Start with a known input

The workbench starts with a complete scenario:
File size: 1024
Unit: mebibytes
Change one assumption at a time to see how it affects the result.

What to know about the result

  • Results are estimates based only on the supplied values. Rounding, fees, local rules, and real-world conditions may change the final outcome.

Common questions

Using the File Size Converter

Is the File Size Converter free to use?

Yes. FormatCalc's File Size Converter is free to use with no account required.

Is my data private when I use the File Size Converter?

Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.

How do I use the File Size Converter?

Enter your values, select any units, and choose Calculate. You can then copy the result.

What should I check before using the result?

Results are estimates based only on the supplied values. Rounding, fees, local rules, and real-world conditions may change the final outcome.