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TRULLZ

Free Ratio Calculator

Solve ratios and scale values.

:
=
:

Leave one field empty — it will be solved (A:B = C:D).

Simplified A:B = 3 : 4

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How to use the Ratio Calculator

  1. 1Enter three values.
  2. 2The fourth is solved.
  3. 3Simplify A:B too.

Features

  • Missing value solver
  • Simplification
  • Scaling

Frequently Asked Questions

Can I use decimals?

Yes — decimals and integers both work.

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About the Ratio Calculator

Solve A:B = C:D for any missing value and simplify ratios. The Ratio Calculator runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more Calculators tools or browse all free online tools.