Math Calculators
Percentages, ratios, fractions, averages and number systems — fast and accurate.
Percentages, ratios, fractions, averages and number systems — fast and accurate.
Our math calculators cover the most common calculations needed in school, college, and professional life. The percentage calculator handles all five types of percentage problems: finding a percentage of a number, calculating what percentage one number is of another, computing percentage change, adding or subtracting a percentage, and finding the original value before a percentage was applied.
Additional tools include a ratio calculator for simplifying and scaling ratios, a fraction simplifier that shows working, an average calculator supporting mean, median, and mode, an LCM and GCD calculator useful for fraction arithmetic, a scientific notation converter, and a number system converter between binary, octal, decimal, and hexadecimal. Each calculator shows step-by-step working so you understand the method, not just the answer.
Most used math tools: the Percentage Calculator covers all five percentage problem types with instant answers. The Fraction Simplifier reduces fractions to lowest terms using the GCD method. The Average Calculator computes mean, median, and mode for any set of numbers.