Free ratio tools with step-by-step working — solve, simplify, scale and split ratios.
About Ratio Calculator
Free ratio tools with step-by-step working, built by James, a math teacher. Solve proportions, simplify ratios, scale ratios, split amounts by ratio, convert ratio to percentage, and calculate aspect ratio and three-part ratios. All free, no account or sign-up.
✓ VerifiedNov 4, 2026
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