🔢 Basic Math Calculators

Free online basic math calculators and tools. Choose a calculator below.

All Basic Math Tools

Percentage Calculator Calculate percentages, percentage change, and percentage of a number. Free onlin... Fraction Calculator Add, subtract, multiply, and divide fractions. Free online fraction calculator w... Ratio Calculator Calculate and simplify ratios. Find equivalent ratios and scale values proportio... Proportion Solver Solve proportions and find the missing value in A/B = C/D. Free cross-multiplica... Average Calculator Calculate the average (mean), sum, count, min, and max of a set of numbers. Free...