📐 Math Calculators

Free math calculators covering everything from basic arithmetic to algebra, geometry, and statistics. Each tool shows the formula and explains how the answer was reached.

Basic Math

Percentage Calculator

Calculate percentages, increases, and decreases

Fraction Calculator

Add, subtract, multiply, and divide fractions

Average Calculator

Find mean, median, and mode of any data set

Ratio Calculator

Simplify and compare ratios

Proportion Calculator

Solve for unknown values in proportions

Probability Calculator

Calculate likelihood of single and multiple events

Algebra

Quadratic Equation Calculator

Solve ax² + bx + c = 0 using the quadratic formula

Scientific Calculator

Advanced calculator with trig, logs, and more

Statistics

Standard Deviation Calculator

Calculate standard deviation and variance

Variance Calculator

Find variance for any set of numbers

Geometry

Area Calculator

Calculate area of circles, rectangles, triangles, and more

Volume Calculator

Calculate volume of 3D shapes

Triangle Calculator

Find angles, sides, and area of any triangle

Square Footage Calculator

Calculate area of rooms and spaces

Conversions

Unit Converter

Convert between length, weight, temperature, and more

Binary Converter

Convert between binary, decimal, hex, and octal

About Our Math Calculators

Every math calculator shows the formula being used and provides a step-by-step explanation of the result. Whether you're a student, teacher, or professional, our tools give you transparent answers you can trust and learn from.

Last Updated: July 4, 2026