Your Result
About the Ratio Calculator
This ratio calculator computes ratios between two or more values, simplifies them to lowest terms, and solves proportions with one unknown. You enter your numbers and get a simplified ratio, a decimal value, and the missing term when one value is blank.
The tool works with two standard methods. It reduces ratios by dividing every term by the greatest common divisor, and it solves proportions through cross multiplication, where a divided by b equals c divided by d. Enter whole numbers or decimals in the labeled fields, and keep all values in the same units so the ratio stays meaningful. For scaling a recipe or a budget, decide which value you want to find before you start.
- Enter the known values in the input fields.
- Leave one field blank if you need to solve for a missing term.
- Click calculate and read the simplified ratio or the solved value.