The Ratio Calculator helps you simplify ratios, generate equivalent ratios, convert ratios to fractions and percentages, and compare two ratios quickly.
What does the calculator do?
- Simplify any ratio (supports integers, decimals, and
a/bfractions). - Generate equivalent ratios using a start multiplier and step.
- Convert to fraction and percent split (a/(a+b), b/(a+b)).
- Compare two ratios to check if they’re equivalent or which is larger.
Example
Input 12 : 16 → simplified 3 : 4; fraction 0.75; percent split 75% and 25%.
Equivalents (×1..×5): 3:4, 6:8, 9:12, 12:16, 15:20.
Why is it important?
Ratios underpin proportional reasoning, scaling, rates, recipes, map reading, and similarity in geometry.
Frequently Asked Questions
What formats can I enter?
Integers, decimals, and simple fractions like 3/4.
Can it tell if two ratios are equal?
Yes — use the compare fields.
Why do I see “—”?
That appears if inputs are invalid (e.g., both terms 0 or blank).