Ratio Calculator
Simplify a ratio and show its decimal value.
Worth Knowing
A ratio expresses relative size, and simplifying it — dividing both parts by their greatest common divisor — makes proportions easier to compare, so 8:12 becomes the cleaner 2:3. Ratios and fractions are closely related: the ratio 2:3 corresponds to the fraction 2/5 of the whole when the parts are combined. This tool also gives the decimal value, which is handy when you need to scale a recipe, a map, or a mixture up or down.
How to Use
- Enter Term A into the first field of the Ratio Calculator.
- Fill in the rest: Term B.
- Your result appears instantly as you type — there's no submit button or page reload.