All Calculators

A simple, fast calculator for everyday arithmetic.

Full scientific calculator with trig, log, and exponents.

Calculate percentages, increases, decreases, and %-of.

Add, subtract, multiply, and divide fractions with steps.

Convert between decimals, fractions and percentages.

Operations on mixed numbers with automatic simplification.

Simplify ratios and solve ratio proportions.

Solve a/b = c/d for any missing term.

Compute the arithmetic mean of any list of numbers.

Statistics: mean, median, mode, range in one click.

Population and sample standard deviation & variance.

Greatest Common Factor of two or more integers.

Least Common Multiple with step-by-step method.

Check primality and find factors instantly.

Compute n! for large numbers using BigInt.

Compute a^b including fractional and negative exponents.

Find the square root and see the simplified radical form.

Real cube root of positive and negative numbers.

Generate random integers or decimals in any range.

Solve linear and quadratic equations with steps.

Area, circumference and diameter from any radius.

Hypotenuse and area via the Pythagorean theorem.

Area and perimeter of a rectangle from length and width.

Volume and surface area of a cylinder.

Volume and surface area of a sphere.

Slope, angle and distance between two points.

Log of any positive number in any base.

Remainder after dividing a by b.

Break a number down into its prime factors with exponents.

Round a number to a chosen number of decimal places.

Round a number to a given number of significant figures.

Convert numbers to and from scientific notation.

Convert scientific notation back to standard decimal form.

Find the nth root of any number.

Compute the natural logarithm (base e) of a number.

Compute the antilogarithm for a given base and value.

Find terms and sums of arithmetic or geometric sequences.

Compute the nth term and sum of an arithmetic sequence.

Compute the nth term and sum of a geometric sequence.

Generate the Fibonacci sequence up to the nth term.

Solve cubic equations of the form ax^3+bx^2+cx+d=0.

Solve a 2x2 system of linear equations using Cramer's rule.

Solve linear inequalities and express the solution set.

Find the absolute value and sign of a number.

Evaluate a polynomial expression at a given x value.

Divide a polynomial by (x - r) using synthetic division.

Find the remainder of a polynomial division using the remainder theorem.

Find the distance between two points on a coordinate plane.