What does Ratio Calculator do?
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.
Who should use Ratio Calculator?
This listing can suit a broad range of people. Check the use cases above and the provider’s own page to see whether it matches what you need.
Best fit
Pricing: Free
How much does Ratio Calculator cost?
Free Check the provider’s own page for the latest pricing, packages and terms.
Directory note
Details, pricing and availability can change. We use provider information, verified owner updates and editorial review where available. Check the provider’s own page before making a purchase, booking or important decision.
Profile last updated 2 Nov 2026.
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