Ratio Calculator Online
Simplify ratios, find equivalent ratios, and calculate missing values with our free and easy-to-use Ratio Calculator.
Calculate Ratios
Simplify ratios, find equivalent ratios, or solve a missing value.
Choose a Calculation
Select what you want to calculate.
Simplify a Ratio
Enter two values to reduce the ratio to its simplest form.
What Is a Ratio?
A ratio compares two quantities and shows the relationship between them. Ratios are commonly written using a colon, such as 2 : 3.
Our Ratio Calculator helps you simplify ratios, calculate equivalent ratios, and solve missing values in ratio problems.
Enter your values above and select the calculation type you need. The calculator provides the result together with the relevant formula and calculation details.
How to Calculate a Ratio
Calculate and simplify ratios in just a few simple steps.
Enter Values
Enter the two values that make up your ratio.
Choose a Method
Simplify the ratio, find an equivalent ratio, or solve a missing value.
Get Your Result
View your ratio result, formula, and calculation details.
Ratio Calculation Formulas
Simplifying a Ratio
Equivalent Ratio
Missing Value
Ratio Calculator Features
Ratio Simplifier
Reduce ratios to their simplest form.
Equivalent Ratios
Generate equivalent ratios using a multiplier.
Missing Values
Solve for an unknown value in a ratio.
Decimal Support
Work with decimal ratio values.
Calculation Details
View formulas and calculation details.
Copy Results
Copy your ratio calculation instantly.
Ratio Calculator FAQ
What is a ratio calculator?
A ratio calculator is an online tool that helps simplify ratios, calculate equivalent ratios, and solve missing values in ratio problems.
How do I simplify a ratio?
Enter the two values of the ratio and select Simplify Ratio. The calculator reduces the ratio to its simplest form.
How do I find an equivalent ratio?
Enter the original ratio, select Equivalent Ratio, and enter a multiplier. Both values are multiplied by the same multiplier.
How do I find a missing value?
Enter the known ratio values, choose the missing position, and provide the known value. The calculator finds the unknown value.
Can I use decimal values?
Yes. The Ratio Calculator supports decimal values.
Calculate Ratios Online
Simplify ratios, find equivalent ratios, and solve missing values quickly with our free Ratio Calculator.
Use Ratio Calculator