Math Calculators

Calculate area of squares, rectangles, triangles, circles, and more

Calculate mean, median, mode, and range from a list of numbers

Add, subtract, multiply, and divide with a free online calculator

Add, subtract, multiply, and divide integers too large for a standard calculator

Add, subtract, and convert binary numbers to decimal and hex

Find radius, diameter, circumference, area, arc length, and sector area

Find GCD, HCF, LCM, and all common factors of two or more numbers

Compute a confidence interval for a mean or a proportion

Find the distance between two points in 2D or 3D

Calculate powers, roots, and a^b with a step-by-step exponent

List all factors and factor pairs of a whole number

Add, subtract, multiply, and divide fractions and mixed numbers

Find the GCF, GCD, or HCF of two or more whole numbers

Add, subtract, and convert hexadecimal numbers to decimal and binary

Find the LCM of two or more whole numbers

Calculate logarithms in any base, including ln, log10, and log2

Divide with a remainder and see every long-division step

Add, multiply, transpose, and invert 2×2 and 3×3 matrices

Find mean, median, mode, and range from a list of numbers

Find the nth term and sum of arithmetic or geometric sequences

Find a p-value from a z-score, t-statistic, or chi-square statistic

Calculate percent error between experimental and accepted values

Find X% of Y, reverse percentages, and percentage change

Calculate nPr permutations and nCr combinations

Break a whole number into its prime factors

Calculate AND, OR, complement, and binomial probabilities

Solve a² + b² = c² for a missing side of a right triangle

Solve ax² + bx + c = 0 and see discriminant, roots, and vertex

Generate random integers or decimals in a range, in your browser

Simplify ratios, find a missing term, or split a total by ratio

Solve a right triangle for sides and angles with SOHCAHTOA

Calculate square roots, cube roots, and nth roots

Round a number to decimal places, significant figures, or a place value

Estimate survey sample size from confidence level and margin of error

Trig, logs, exponents, and parentheses in a free online scientific calculator

Convert numbers to and from scientific notation (a × 10^n)

Find slope, intercept, distance, and line equation from two points

Calculate sample or population standard deviation and variance

Descriptive statistics: mean, median, quartiles, variance, and SD

Calculate surface area of cubes, spheres, cylinders, and prisms

Solve a triangle from SSS, SAS, ASA, AAS, or SSA and find area

Calculate volume of cubes, spheres, cylinders, cones, and more

Convert a value to a z-score, percentile, or raw score