Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Math
Ratio Calculator
Simplify any two-number ratio to its lowest terms and explore equivalent ratios in seconds. Ideal for cooking, map scaling, financial analysis, and mixing solutions where proportional relationships matter.
Fill in the required fields to see your result.
Math
Proportion Calculator
Find the missing fourth value d in any proportion a/b = c/d when three values are known. Perfect for scaling recipes, converting units, solving map distances, and cross-multiplication problems.
Fill in the required fields to see your result.
Key differences
| Ratio Calculator | Proportion Calculator | |
|---|---|---|
| Category | Math | Math |
| Inputs required | 2 | 3 |
| Result | Ratio (decimal) (:1) | d |
| What it does | Simplify any two-number ratio to its lowest terms and explore equivalent ratios in seconds. Ideal for cooking, map scaling, financial analysis, and mixing solutions where proportional relationships matter. | Find the missing fourth value d in any proportion a/b = c/d when three values are known. Perfect for scaling recipes, converting units, solving map distances, and cross-multiplication problems. |