Math Calculators
Scientific, algebra, statistics, geometry, and more. Browse all 44 free math calculators below.
Scientific Calculator
Full-featured scientific calculator with trig, log, powers, and memory.
Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers.
Percentage Calculator
Solve all percentage problems: percent of, what percent, percent change.
Triangle Calculator
Solve any triangle from sides and angles using the law of sines and cosines.
Volume Calculator
Calculate the volume of spheres, cones, cylinders, cubes, and more.
Standard Deviation Calculator
Calculate population or sample standard deviation for any dataset.
Random Number Generator
Generate random integers or decimals within any range.
Number Sequence Calculator
Generate arithmetic, geometric, or Fibonacci sequences.
Percent Error Calculator
Calculate the percent error between an observed and true value.
Exponent Calculator
Calculate any base raised to any exponent.
Binary Calculator
Perform binary arithmetic and convert between binary, decimal, and hex.
Hex Calculator
Hexadecimal arithmetic and base conversion.
Half-Life Calculator
Solve the radioactive decay equation for any unknown variable.
Quadratic Formula Calculator
Find the roots of any quadratic equation ax² + bx + c = 0.
Slope Calculator
Find the slope, distance, angle, and equation of a line through two points.
Log Calculator
Calculate logarithms with any base.
Area Calculator
Calculate the area of rectangles, triangles, circles, and more.
Sample Size Calculator
Find the required sample size for a survey with your desired confidence.
Probability Calculator
Calculate probabilities for single events, unions, intersections, and normal distributions.
Statistics Calculator
Compute full descriptive statistics for any dataset.
Mean, Median, Mode Calculator
Calculate the mean, median, mode, and range of a dataset.
Permutation and Combination Calculator
Calculate nPr (permutations) and nCr (combinations).
Z-score Calculator
Calculate z-scores, raw scores, and normal distribution probabilities.
Confidence Interval Calculator
Calculate confidence intervals for a sample mean or proportion.
Ratio Calculator
Simplify, compare, scale, and find equivalent ratios.
Distance Calculator
Calculate distance between two points in 2D, 3D, or on a map.
Circle Calculator
Solve circle dimensions from radius, diameter, circumference, or area.
Surface Area Calculator
Calculate the surface area of 3D shapes.
Pythagorean Theorem Calculator
Find any side of a right triangle using the Pythagorean theorem.
Right Triangle Calculator
Solve all sides, angles, area, and altitude of a right triangle.
Root Calculator
Calculate square, cube, or any nth root.
Least Common Multiple Calculator
Find the LCM of two or more integers.
Greatest Common Factor Calculator
Find the GCF (GCD) of two or more integers.
Factor Calculator
Find all factors of any integer.
Rounding Calculator
Round any number to a chosen precision with multiple rounding modes.
Matrix Calculator
Add, subtract, multiply matrices; find determinant, inverse, and transpose.
Scientific Notation Calculator
Convert numbers to/from scientific notation and perform arithmetic.
Big Number Calculator
Perform arithmetic on arbitrarily large integers.
Prime Factorization Calculator
Find the prime factorization of any integer.
Common Factor Calculator
Find all common factors of two or more integers.
Basic Calculator
Simple four-function calculator for everyday arithmetic.
Long Division Calculator
Step-by-step long division with work shown.
Average Calculator
Calculate the mean (average) of any list of numbers.
P-value Calculator
Calculate the p-value from a z, t, chi-square, or F test statistic.