Ratio Calculator

Simplify ratios and scale them to a desired part.

Ratio Calculator helps you simplify a ratio and scale it to a target part. Enter first part (a), second part (b), and scale so a equals (optional), review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Ratio calculator does Ratio Calculator is built for arithmetic, algebra, geometry, and number tools. Simplify a ratio and scale it to a target part. You enter first part (a), second part (b), and scale so a equals (optional), then Simple Calculators computes the result instantly. Results use standard school and engineering formulas that run privately in your browser. How the math works Simplifying divides both parts by their largest common factor. Scaling multiplies both parts by target ÷ original part. The formula: A : B = (A ÷ common factor) : (B ÷ common factor). Divide both parts by the largest whole number that goes into both exactly.