Ratio Calculator

⚡ Simplify ratios, find equivalents, and solve proportions instantly with step-by-step solutions. 100% free.

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The Best Ratio Calculator Online

Our ratio calculator is perfect for cooking conversions, scale drawings, and math homework. Simplify any ratio, find equivalent ratios, or solve proportion problems with detailed step-by-step solutions. Perfect for learning, recipe scaling, and real-world applications. No signup, no ads, just instant accurate results.

Simplify Ratio

a:b = (a÷GCD):(b÷GCD)

Divide both by their GCD

Equivalent Ratio

a:b = (a×n):(b×n)

Multiply both by same number

Proportion

a/b = c/d → a×d = b×c

Cross multiplication

Examples

Simplify 24:36

1GCD(24, 36) = 12

224÷12 = 2

336÷12 = 3

4Simplified: 2:3

Solve 3:4 = x:20

1Cross multiply: 3 × 20 = 4 × x

260 = 4x

3x = 60 ÷ 4 = 15

Frequently Asked Questions

Is this ratio calculator free?

Yes! 100% free with no signup required and no ads.

What is the difference between a ratio and a fraction?

A ratio compares quantities (like 3 boys to 4 girls = 3:4), while a fraction represents a part of a whole (like 3/7 of students are boys).

How do I simplify a ratio?

Find the GCD (Greatest Common Divisor) of both numbers and divide each by the GCD.