Ratio Calculator
Simplify ratios, solve missing values in proportions, and convert ratios into fractions or percentages instantly for school, finance, cooking, and everyday comparisons.
Enter two values to simplify the ratio and see the fraction, decimal, and percentage equivalents.
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How to Use the Ratio Calculator
- Enter the two values of the ratio in the A and B fields.
- Click simplify ratio to reduce it to its simplest form and view the fraction, decimal, and percentage.
- Use the proportion section to find a missing value in an equation like A:B = C:D.
- Review the visual comparison bar to see the relative share of each side.
What Is a Ratio?
A ratio compares two quantities and shows how much of one thing there is relative to another. Ratios are used in finance, cooking, maps, design, probability, investments, and scale comparisons.
How to simplify ratios
To simplify a ratio, divide both sides by the greatest common divisor of the two numbers. For example, 10:20 simplifies to 1:2 because both numbers can be divided by 10.
Ratio vs fraction
A ratio compares two quantities, while a fraction usually describes part of a whole. Ratios and fractions are closely related, and this calculator can convert one ratio side over the total into a fraction and percentage for easy interpretation.
Real-life examples
Ratios appear in profit margins, ingredient scaling, aspect ratios, odds, exchange comparisons, and budget allocations. A simple ratio tool makes it easier to test proportions without doing manual cross-multiplication.
Frequently Asked Questions
How do I simplify a ratio?
Enter values and click simplify.
Is this tool free?
Yes.
Can I solve proportions?
Yes.
Can I convert ratio to percentage?
Yes.