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Ratio Calculator

Simplify ratios, compare quantities and understand how two values relate to each other.

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RATIO DETAILS

Compare two quantities.

Enter two values to simplify their ratio, compare their proportions and understand how each value contributes to the total.

Ratio
2:3
Simplification
Divide both values by their greatest common divisor.
SIMPLIFIED RATIO
2:3

The ratio 2 : 3 simplifies to 2 : 3.

Total5
First share40.00%
Second share60.00%
First ÷ Second0.67
QUICK EXAMPLES

Try common ratios.

Select an example to instantly simplify the ratio and compare both quantities.

HOW RATIOS WORK

A ratio compares quantities.

A ratio shows the relative relationship between two quantities. For example, a ratio of 2 : 3 means that for every 2 parts of the first quantity, there are 3 parts of the second.

20 : 30 = 2 : 3
Both values are divided by their greatest common divisor, which is 10.
EVERYDAY USE

Ratios are useful for comparisons.

Ratios are commonly used for recipes, mixtures, business comparisons, classroom problems, financial analysis and many other situations.

Recipes
Keep ingredient proportions consistent.
Mixtures
Compare quantities in a mixture.
Comparison
Understand relative quantities quickly.

This calculator simplifies whole-number ratios using the greatest common divisor. For decimal values, the result is based on the numeric values entered and may not represent the preferred real-world measurement format.

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FAQ

Ratio calculator questions

What is a ratio?

A ratio compares two quantities by showing how much of one quantity exists relative to the other. For example, 2 : 3 means two parts compared with three parts.

How do I simplify a ratio?

Divide both values by their greatest common divisor. For example, 20 : 30 becomes 2 : 3 after dividing both numbers by 10.

What does a ratio of 1 : 2 mean?

It means that for every 1 part of the first quantity, there are 2 parts of the second quantity. The first quantity represents one third of the combined total and the second represents two thirds.

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