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Ratio Calculator
Simplify a ratio to its lowest terms and express it as a decimal and a percentage.
How to use this tool
- 1Paste or type your input above.
- 2The result updates instantly.
- 3Copy the output with one click.
Frequently asked questions
How do you simplify a ratio?+
Divide both numbers by their greatest common factor (GCF). For 16:9, the GCF is 1, so it's already simplest; 18:12 simplifies to 3:2 because both divide by 6.
Is my data private?+
Yes. The tool runs entirely in your browser β nothing you paste or type is uploaded to a server.
Learn more
- Ratio Calculator: formula and example
- ratio calculator explained
- Common mistakes with ratio calculator