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Simplify ratios, solve proportions and scale ratios to any total — with visuals.
Simplest form
2 : 3
As a fraction
2/3
1 : n form
1 : 1.5
Great for recipes, paint mixes, aspect ratios and splitting amounts. All math happens instantly in your browser.
Work with ratios three ways: simplify any ratio (decimals welcome) to its lowest integer form, fraction and 1:n form; solve a proportion A : B = C : D by leaving one field blank; or scale a ratio by a multiplier or to a target total — perfect for recipes, mixes and aspect ratios. Every result includes the percentage split and a visual bar. Runs entirely in your browser.
Ratio Calculator provides a versatile, three-in-one approach to working with ratios by supporting simplification, proportion solving, and scaling within a single interface. It processes calculations directly in the browser with no installation or account creation required, instantly outputting percentage splits and visual bar representations alongside the numerical results.
Good to know: This tool is designed for standard mathematical ratios and proportions; users requiring advanced statistical analysis or complex algebraic equation solving may need specialized math software.
Learn how to simplify ratios, solve proportions, and scale values to any total using our free online ratio calculator.
Open the online Ratio Calculator tool
Navigate to the ratio calculator tool directly in your web browser to get started instantly with no installation required.
Choose your calculation mode
Select whether you want to simplify a ratio, solve an unknown proportion, or scale a ratio to a target total or multiplier.
Enter your numbers into the fields
Input your ratio values, decimals, or leave one field blank if you are solving a proportion equation.
View simplified results and visuals
Instantly review your lowest integer ratio, fraction form, percentage split, and visual bar representation directly in your browser.
Estimated time: PT1M
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