Mathematics calculators
From basic arithmetic to statistics and algebra.
Algebra Solver
Solve linear equations of the form ax + b = c.
Arithmetic Sequence Calculator
nth term and sum of an arithmetic progression.
Average Calculator
Mean, sum and count for a list of numbers.
Basic Calculator
Add, subtract, multiply and divide two numbers.
Binomial Probability Calculator
Probability of exactly k successes in n trials.
Circle Calculator
Area, circumference and diameter from a radius.
Equation Solver
Solve simultaneous linear equations in two variables.
Exponent Calculator
Raise any base to any power.
Factorial Calculator
Compute n! for any reasonable value of n.
Fraction Calculator
Add, subtract, multiply or divide two fractions.
GCD Calculator
Greatest common divisor using the Euclidean algorithm.
Geometric Sequence Calculator
nth term and sum of a geometric progression.
Geometry Calculator
Area and perimeter of common 2D shapes.
LCM Calculator
Lowest common multiple of two numbers.
Logarithm Calculator
Log of a number in any base.
Matrix Calculator
Determinant and inverse of a 2×2 matrix.
Median & Mode Calculator
Middle value and most frequent value in a data set.
Percent Change Calculator
Increase or decrease between two numbers.
Permutation & Combination Calculator
nPr and nCr for counting problems.
Polynomial Calculator
Evaluate a cubic polynomial at any value of x.
Prime Number Checker
Check if a number is prime and see its factors.
Probability Calculator
Single and combined event probability.
Proportion Solver
Solve a/b = c/x for the missing value.
Pythagorean Theorem Calculator
Find the hypotenuse or a missing leg.
Quadratic Equation Solver
Roots of ax² + bx + c = 0 with discriminant analysis.
Ratio Calculator
Simplify a ratio and scale it to a new total.
Root Calculator
Square, cube and nth roots.
Scientific Calculator
Free online scientific calculator: trig, log, exponential, power and root functions.
Sphere Volume Calculator
Volume and surface area of a sphere.
Statistics Calculator
Mean, median, mode and standard deviation of a data set.
Triangle Area Calculator
Heron's formula area from three sides.