Math calculators
50 free tools. Fractions, percentages, algebra, geometry and statistics.
Arithmetic & numbers
Absolute Value CalculatorCalculate absolute value and distance from zero.Average CalculatorCalculate mean, median, mode, range, and more statistical measures with step-by-step solutions.Binary CalculatorPerform arithmetic operations with binary numbers.Exponent CalculatorCalculate x^y (x to the power of y) with step-by-step solutions and scientific notation.Factorial CalculatorCalculate n! (n factorial) with step-by-step solutions and explanations.Fraction CalculatorAdd, subtract, multiply, divide, and simplify fractions with step-by-step solutions.GCD LCM CalculatorCalculate Greatest Common Divisor and Least Common Multiple of two numbers.Hexadecimal CalculatorConvert and calculate with hexadecimal numbers.Hexagon CalculatorCalculate area, perimeter, diagonals, inradius, and circumradius of regular hexagons.Logarithm CalculatorCalculate logarithms with any base including common log (base 10), natural log (ln), and custom bases.Mixed Number CalculatorCalculate with mixed numbers and convert between forms.Number Base ConverterConvert between binary, decimal, hexadecimal, and octal number systems instantly.Parallelogram CalculatorCalculate area, perimeter, height, and diagonals of parallelograms.Percentage CalculatorUniversal percentage calculator for all percentage calculations.Percentile CalculatorCalculate percentiles, percentile ranks, quartiles, and analyze data distribution with visual charts.Prime Number CheckerInstantly check if any number is prime.Ratio CalculatorSimplify ratios to lowest terms with step-by-step solutions.Rounding CalculatorRound numbers to nearest integer, decimal places, or significant figures.Scientific CalculatorAdvanced online calculator with trigonometric, logarithmic, exponential functions.Square Root CalculatorCalculate square roots, cube roots, and nth roots with step-by-step solutions.
Geometry
Angle CalculatorCalculate angles, convert units, and solve angle problems.Area CalculatorCalculate area for all geometric shapes: square, rectangle, circle, triangle, parallelogram, trapezoid, and more.Circle CalculatorCalculate area, circumference, diameter, and radius of a circle.Ellipse CalculatorCalculate area, perimeter, eccentricity, and other properties of ellipses with visual representations and detailed formulas.Pythagorean CalculatorCalculate the missing side of a right triangle using the Pythagorean theorem: a² + b² = c².Rectangle CalculatorCalculate area, perimeter, diagonal, and properties of rectangles.Slope CalculatorCalculate slope, gradient, angle, and line equations from two points or rise over run.Surface Area CalculatorCalculate surface area for 3D shapes and objects.Triangle CalculatorCalculate area, perimeter, angles, and all properties of triangles.Volume 3d CalculatorCalculate volume for all 3D shapes: cube, sphere, cylinder, cone, pyramid, prism and more.Volume CalculatorCalculate volume for all 3D shapes: cube, sphere, cylinder, cone, and more.
Statistics & probability
Combination Permutation CalculatorCalculate nCr, nPr, factorials for probability and combinatorics.Correlation CalculatorCalculate Pearson correlation coefficient, analyze relationships between variables, and visualize data with scatter plots and trend lines.Linear Regression CalculatorCalculate line of best fit, slope, intercept, R-squared, correlation, and make predictions.Mean Median Mode CalculatorCalculate measures of central tendency including mean, median, mode, range, and other statistical properties with visual distribution charts.Probability CalculatorCalculate basic probability, conditional probability, odds, and more.Standard Deviation CalculatorCalculate standard deviation, variance, mean, and other statistical measures for your data set.Variance CalculatorCalculate population and sample variance, standard deviation, and other variability measures with step-by-step calculations.Z Score CalculatorFree Z-Score Calculator - Calculate z-scores, percentiles, and probabilities for normal distribution with detailed explanations.
Algebra & more
Matrix CalculatorAdd, subtract, multiply matrices, calculate determinant, inverse, and transpose.Modulo CalculatorCalculate remainder (modulo) of division operations.Octagon CalculatorCalculate area, perimeter, diagonals, inradius, and circumradius of regular octagons.Pentagon CalculatorCalculate area, perimeter, diagonal, inradius, and circumradius of regular pentagons.Polygon CalculatorCalculate properties of regular polygons.Quadratic Equation CalculatorSolve quadratic equations using the quadratic formula with step-by-step solutions and graphical visualization.Range CalculatorCalculate range, interquartile range (IQR), quartiles, and measures of spread for your dataset with box plot visualization.Rhombus CalculatorCalculate area, perimeter, diagonals, angles, and other properties of rhombuses (diamonds) with visual diagrams.Sequence CalculatorCalculate arithmetic, geometric, and Fibonacci sequences.Square CalculatorCalculate area, perimeter, and diagonal of squares.Trapezoid CalculatorCalculate area, perimeter, height, and properties of trapezoids (trapeziums).