Math & Geometry (69 tools)
Equations, fractions, logs, trigonometry, geometry, matrices and sequences
√Square Root CalculatorSquare, cube and n-th roots.½Fraction CalculatorFraction arithmetic and reduction.％Percentage CalculatorAll four percentage questions in one go.㏒Logarithm CalculatorLogarithms in any base.xⁿExponent CalculatorPowers with any base and exponent.🔬Scientific Notation ConverterPlain numbers ⇄ scientific notation.÷GCD & LCM CalculatorGCD and LCM of several integers.🔢Prime FactorizationPrime factors, primality test and divisors.𝑥²Quadratic Equation SolverSolve quadratics with full working.⚖System of Equations SolverSolve two-variable linear systems.📊Mean Median Mode CalculatorMean, median, mode and spread.σStandard Deviation CalculatorSample and population variance and SD.∶Ratio CalculatorSolve proportions and simplify ratios.∑Sequence CalculatorArithmetic and geometric sequences.ⁿCPermutation & CombinationFactorials, permutations and combinations.∿Trigonometry CalculatorTrig and inverse trig values.△Pythagorean Theorem CalculatorRight triangles, any missing side.◯Circle CalculatorAll circle values from one input.▭Area CalculatorArea and perimeter of common shapes.⬢Volume CalculatorVolume and surface area of solids.⟋Slope CalculatorSlope and line equation from two points.⟷Distance CalculatorDistance and midpoint between points.⊞Matrix CalculatorMultiply, determinant and invert matrices.01Base ConverterConvert between number bases.≈Rounding CalculatorRound numbers to any precision.％Modulo CalculatorModulo and divisibility.⭕Circle Area CalculatorEnter a radius to get the area, circumference and diameter with the formula shown.▭Rectangle Area CalculatorEnter length and width to get the area, perimeter and diagonal.🔺Triangle Area CalculatorGive three sides to get the area by Heron's formula plus the perimeter and all angles.📐Right Triangle CalculatorSolve the hypotenuse from two legs, with angles, area and circle radii.▱Trapezoid Area CalculatorEnter both parallel sides and the height to get the area and mid-segment.▰Parallelogram CalculatorGet the area from base and height, or from two sides and the included angle.🔷Rhombus CalculatorEnter the two diagonals to get the area, side, perimeter and angles.🍕Sector CalculatorEnter radius and central angle to get the area, arc, chord and sector perimeter.⬭Ellipse CalculatorEnter the semi-axes to get the area, perimeter by Ramanujan's approximation and eccentricity.🌐Sphere CalculatorEnter the radius to get the volume, surface area and great-circle area.🥫Cylinder CalculatorEnter the base radius and height to get the volume, lateral area and capacity.🍦Cone CalculatorEnter base radius and height to get the volume, slant height and surface areas.🧊Cube CalculatorEnter the edge to get the volume, surface area, diagonal and sphere radii.📦Rectangular Box CalculatorEnter length, width and height to get the volume, surface area and diagonal.🔲Prism Volume CalculatorEnter the base area and height to get the volume plus equivalent square side and circle radius.🔻Pyramid Volume CalculatorEnter the base area and height to get the volume, plus slant height for a square base.🍩Torus CalculatorEnter the major and minor radii to get the volume, surface area and diameters.💊Capsule CalculatorEnter the cylindrical length and radius to get the volume, surface area and total length.🏛Frustum CalculatorEnter both radii and the height to get the volume, slant height and areas.🌗Hemisphere CalculatorEnter the radius to get the volume, curved area and total area including the base.⬡Regular Polygon CalculatorEnter the side count and edge length to get the area, interior angle and circle radii.📏Distance Between Two PointsEnter two planar coordinates to get the distance, midpoint and angle.📈Line Equation CalculatorEnter two points to get the slope, intercept and the slope-intercept equation.％Percentage CalculatorEnter the base and a percentage to get the amount, plus the base after adding or removing it.📊Percentage Change CalculatorEnter the original and new values to get the change in percent, the difference and the ratio.⇄Percentage Difference CalculatorEnter two values to get their difference relative to the average (not the same as change).➗Ratio CalculatorEnter two or three numbers to simplify to the smallest integer ratio and split a total accordingly.½Fraction CalculatorEnter two fractions, choose an operation, and get the reduced fraction and its decimal.🔢GCD and LCM CalculatorEnter two positive integers to get the GCD by Euclid's algorithm and the LCM.🔍Prime Checker and FactorizerCheck whether a positive integer is prime and, if not, list its complete prime factorisation.📋Divisor CalculatorEnter a positive integer to get the divisor count, the sum of divisors and the aliquot sum.🧮LCM of Three NumbersEnter three positive integers to get their least common multiple and greatest common divisor.🔬Scientific Notation ConverterConvert a number to scientific notation or back, with its order of magnitude.🔀Arbitrary Base ConverterConvert integers between any radix from 2 to 36, using letters above 9.🎯Rounding CalculatorEnter a number and a decimal count to get rounded, rounded up, rounded down and truncated results.√Nth Root CalculatorEnter the radicand and the root index to get the real root, including odd roots of negatives.📐Logarithm CalculatorEnter the argument and base to get the logarithm plus the natural and common logs.📈Exponent CalculatorRaise any base to a power, with e^x, square and cube for reference.📊Average CalculatorEnter numbers separated by commas or newlines to get the sum, mean, max and min.📉Percentile CalculatorEnter a data set and a target percentile to get the value by linear interpolation plus the median and quartiles.📏Standard Deviation CalculatorEnter a data set to get population and sample standard deviations, variance, mean and coefficient of variation.📐Z-Score CalculatorEnter a raw value, mean and standard deviation to get the z-score and its normal-distribution percentile.🔀Permutation and Combination CalculatorEnter n and r to get permutations P(n,r), combinations C(n,r) and permutations with repetition.