Math Calculators

Area Calculator

Free area calculator. Find the area of circles, rectangles, triangles, parallelograms, and other 2D shapes using standard geometry formulas. Use our free calcul

Combination Permutation Calculator

Free combination and permutation calculator. Enter n and r to calculate nCr (combinations) and nPr (permutations) with step-by-step formulas. Use our free calcu

Cylinder Volume Calculator

Free cylinder volume calculator. Enter radius and height to find the volume and capacity of any cylindrical tank, pipe, or container in liters or gallons.

GCD LCM Calculator

Free GCD and LCM calculator. Enter any two or more numbers to instantly find the greatest common divisor and least common multiple. Use our free calculator now.

Average Calculator

Free average calculator. Enter any set of numbers to find the mean, median, mode, range, sum, and count — with a clear breakdown of each. Use our free calculato

Square Root Calculator

Free square root calculator. Find the exact or decimal square root of any positive number, plus cube roots and nth roots. Use our free calculator now.

Standard Deviation Calculator

Free standard deviation calculator. Enter a dataset to get mean, median, mode, variance, standard deviation, and other key statistics instantly. Use our free ca

Triangle Calculator

Free triangle calculator. Find the area, perimeter, and all missing angles and sides of any triangle given three known values (SSS, SAS, ASA, AAS). Use our free

Volume Calculator

Free volume calculator. Find the volume of cubes, spheres, cylinders, cones, rectangular prisms, and other 3D shapes using standard formulas. Use our free calcu