Tools
Mathematics Tools
680 free tools · No signup, no limits, no cost.
Area and perimeter of any 2D shape
Simplify an aspect ratio and resize without distortion
A fast, free online calculator
Binary, hex and bitwise arithmetic
Area, circumference, radius, sector & arc
nCr, nPr and factorials for counting
Arithmetic, polar form, powers and roots
Differentiate any function, exactly
Raise any number to any power
Factor polynomials and find their roots
Add, subtract, multiply and divide fractions
Greatest common divisor and least common multiple
Antiderivatives and definite integrals
Evaluate limits, one-sided or at infinity
Solve 2×2 and 3×3 systems with working
log, ln, log₂ and any custom base
Long division with full worked steps
Determinant, inverse, eigenvalues and more
Mean, median, mode, spread, quartiles & outliers
Mod, GCD, modular inverse and power
Square root, cube root, any nth root + surds
Write any number in words
How far a measurement is from the true value, as a percentage
Add, multiply, divide and evaluate polynomials
Is it prime? Plus full factorisation
Solve a : b = c : x for the missing value
Find a missing side of a right triangle
Simplify any ratio to its lowest terms
Round to places, sig figs, or nearest 5/10/100
Trig, logs, powers, roots and more
Nth term and sum of an arithmetic or geometric sequence
Solve any triangle from 3 measurements
sin, cos, tan, their reciprocals and inverses
Dot, cross, magnitude, angle and projection
Volume and surface area of any solid