Quick Tool Labs

Ratio Calculator

Use this ratio calculator to compare two values, simplify the ratio, and see the percentage share for each side of the total.

Ad placement areaTop display slot for AdSense or a responsive banner.

Calculator

Simplified ratio0:0
Total parts0
Percentage split0% / 0%

Enter two values to calculate and simplify their ratio.

Ad placement areaMid-page ad slot placed below the core tool and results.

How this ratio calculator works

This calculator compares two values, reduces them to the simplest ratio form, and shows how much each side contributes to the total.

Simplified ratio = first value : second value reduced by the greatest common divisor

Use it for recipes, proportions, comparisons, business splits, and any situation where you need to express one quantity relative to another.

Examples

Example 1

8 to 12 simplifies to 2:3.

Example 2

15 to 10 simplifies to 3:2.

Example 3

A ratio of 2:3 means the first side is 40% of the total and the second side is 60%.

Frequently asked questions

What if both values are the same?

The simplified ratio is 1:1 because both sides represent equal parts.

Can the values be decimals?

Yes. The calculator scales decimal inputs before simplifying the ratio when possible.

What if one value is zero?

The calculator still shows the ratio, but simplification is limited because one side has no share of the total.

Ad placement areaLower-page ad slot near FAQ and related internal links.