MATH CALCULATORS
Ratio Calculator
Enter two or three ratio values to simplify, scale, or solve equivalent proportions.
Use with time unit and math tools
Enter ratio values and choose a mode.
- Result
- No result
- Formula
- A:B = C:D
Ratio calculations stay in your browser and are not uploaded.
Long decimal inputs may be rounded for display after the ratio is normalized.
How it works
Ratio Calculator uses the values you enter to produce a clear result directly in your browser. Inputs are designed to be easy to review before you copy, print, or use the result.
Example
Open the tool, enter a realistic sample value, review the output, and adjust the fields until the result matches your workflow.
Frequently Asked Questions
Is this tool free to use?
Yes. You can use this tool in your browser without creating an account.
Do I need to install anything?
No. The tool runs online in a modern web browser.
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