A ratio compares two quantities by division. It shows the relative size of two numbers.

Math Calculators

Ratio Calculator – Simplify & Solve Ratios

Simplify ratios and solve proportion problems. Find equivalent ratios and missing values in proportions.

Ratio Calculator Formula

Divide both numbers by their Greatest Common Divisor (GCD) to simplify the ratio.

Ratio: 12 : 8

GCD(12, 8) = 4

12/4 : 8/4 = 3 : 2

What is a ratio?

Calculate percentages easily. Find what percent one number is of another, or calculate the percentage of a number.

Calculate the Least Common Multiple (LCM) of two or more numbers. Essential for fraction operations and math problems.

Calculate the Highest Common Factor (HCF) or Greatest Common Divisor (GCD) of two numbers.