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Compression ratio calculator

This calculator calculates file or archive compression ratio.

Data sizeCalculatorOnline

Enter values

Compression ratio, %

Formula

ratio = compressed size / original size × 100

What this calculator does

This calculator calculates file or archive compression ratio.

How to use

  1. Enter values in the fields.
  2. Click Calculate.
  3. Check the result below the form.

FAQ

Is the formula real?

Yes, practical formulas for storage and data-size estimation are used.

Are data sent to the server?

No, calculation runs in the browser.

Report an error