Math Calculators

Fractions, percentages, statistics, geometry and other math calculators.

Area Calculator
Calculate the area of a square, rectangle, triangle, circle, ellipse, trapezoid, parallelogram, rhombus, sector, regular polygon or ring.
Exponent Calculator
Raise any number to a power, including negative and fractional exponents. Very large results appear in scientific notation.
Fraction Calculator
Add, subtract, multiply and divide fractions and mixed numbers. Results are simplified and shown as a fraction, a mixed number and a decimal.
GCF Calculator
Find the greatest common factor (greatest common divisor) of two to ten whole numbers, with prime factorizations and the LCM.
LCM Calculator
Find the least common multiple of two to ten whole numbers, with prime factorizations and the greatest common factor.
Logarithm Calculator
Calculate logarithms to any base, plus the natural log (ln), common log (log10) and binary log (log2).
Mean, Median, Mode Calculator
Find the mean, median, mode, range, sum, count, minimum and maximum of a list of numbers, plus the sorted list.
Percentage Calculator
Find a percentage of a number, what percent one number is of another, the original value, or a percentage change.
Quadratic Formula Calculator
Solve ax² + bx + c = 0 with the quadratic formula. Shows real or complex roots, the discriminant and the vertex of the parabola.
Random Number Generator
Generate random whole numbers or decimals in any range, with or without repeats. Every click gives a new set.
Root Calculator
Calculate square roots, cube roots and any nth root, with simplified radical form and complex results for even roots of negatives.
Rounding Calculator
Round a number to decimal places or significant figures using half up, half down, half even, half away from zero, truncate, ceiling or floor.
Scientific Calculator
A free online scientific calculator with trigonometry, logarithms, powers, roots, constants and memory.
Standard Deviation Calculator
Calculate the standard deviation, variance, mean, sum and standard error of a list of numbers, for a sample or a whole population.
Triangle Calculator
Solve a triangle from three known values (SSS, SAS, ASA, AAS or SSA) and get all sides, angles, area, perimeter and more, with a drawing.
Volume Calculator
Calculate the volume and surface area of a cube, box, sphere, hemisphere, cylinder, cone, pyramid, ellipsoid, capsule or torus.