Free Online Ratio Calculator

QUICK MATH Ratio Calculator
ENTER 3 VALUES —
PROPORTION A : B = C : D

Enter any 3 values and leave 1 value empty.

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FAQ

A Ratio Calculator is an online tool that helps calculate, simplify, compare, and solve ratios. It can also find a missing value in a proportional ratio.

A ratio shows the relationship between two or more quantities. For example, a ratio of 2:3 means there are 2 parts of one quantity for every 3 parts of another.

To calculate a ratio, compare two quantities and write them in the same order. For example, if there are 10 apples and 15 oranges, the ratio is 10:15, which can be simplified to 2:3.

Yes. The Ratio Calculator can simplify ratios by dividing the values by their greatest common factor.

An equivalent ratio has the same relationship between its values even though the numbers are different. For example, 2:3 and 4:6 are equivalent ratios.

Yes. A Ratio Calculator can help find an unknown value when you know the other numbers in a proportional relationship.

You can set the two ratios equal to each other and use cross multiplication to find the missing value. The calculator can perform this calculation for you.

Yes. Ratios and proportions are closely related, and the calculator can be used to solve many common proportion problems.

Yes. A ratio can help you increase or decrease recipe quantities while keeping the same proportions between ingredients.

Ratios and percentages are related, but they represent information differently. You can convert a ratio into a percentage when the calculation requires it.

Yes. Ratios can be represented using decimals or fractions. Depending on the calculation, converting them into whole-number ratios may make them easier to compare.

Yes, the Ratio Calculator is free to use and can quickly solve common ratio and proportion calculations without doing the math manually.

About the Ratio Calculator

The Ratio Calculator helps you calculate and simplify ratios quickly. It can be used to find equivalent ratios, compare two quantities, and determine a missing value when the other numbers are known. For example, if you have a ratio of 2:3 and want to find an equivalent ratio, the Ratio Calculator can calculate the result without requiring you to work through the steps manually. It can be useful for mathematics, recipes, measurements, financial calculations, mixing materials, and everyday comparisons.

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