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Math Calculators

Scientific, statistics, geometry and algebra calculators for school, work, and everyday problem solving.

100 calculatorsAlgebra, geometry, statistics & more

Most popular

Scientific CalculatorA full-featured online scientific calculator with trig, log, exponent and memory functions.Percentage CalculatorCalculate percentages, percentage of a value, and percentage change between two numbers.Average CalculatorCalculate the mean, median, mode and range of a list of numbers.

All calculators

Standard CalculatorA simple, fast standard calculator for everyday arithmetic.
Fraction CalculatorAdd, subtract, multiply or divide two fractions and simplify the result.
Ratio SimplifierSimplify a ratio between two numbers to its lowest terms.
Standard Deviation CalculatorCalculate population and sample standard deviation and variance for a list of numbers.
Probability CalculatorCalculate the probability of a single event given favorable and total outcomes.
Permutation Calculator (nPr)Calculate the number of permutations (ordered arrangements) of r items from a set of n.
Combination Calculator (nCr)Calculate the number of combinations (unordered selections) of r items from a set of n.
Random Number GeneratorGenerate one or more random integers within a range.
Triangle CalculatorCalculate the area, perimeter and angles of a triangle from its three side lengths.
Right Triangle CalculatorCalculate the hypotenuse, area and perimeter of a right triangle from its two legs.
Pythagorean Theorem CalculatorSolve for any missing side of a right triangle using the Pythagorean theorem.
Circle CalculatorCalculate the area, circumference and diameter of a circle from its radius.
Area CalculatorCalculate the area of a square, rectangle, circle or triangle.
Volume CalculatorCalculate the volume of a cube, sphere, cylinder, cone or rectangular prism.
Surface Area CalculatorCalculate the surface area of a cube, sphere or cylinder.
Slope CalculatorCalculate the slope and equation of a line through two points.
Distance Between Two Points CalculatorCalculate the straight-line distance between two points on a plane.
Midpoint CalculatorCalculate the midpoint between two coordinate points.
Quadratic Equation SolverSolve any quadratic equation ax² + bx + c = 0 for its real or complex roots.
Exponent CalculatorCalculate the result of raising a base number to a power.
Logarithm CalculatorCalculate the logarithm of a number in any base, including natural log.
Nth Root CalculatorCalculate the nth root of any number, including square and cube roots.
Factorial CalculatorCalculate the factorial of a non-negative integer.
GCF and LCM CalculatorFind the greatest common factor and least common multiple of a list of numbers.
Long Division CalculatorDivide two numbers and see the quotient and remainder.
2x2 Matrix CalculatorCalculate the determinant, trace and inverse of a 2x2 matrix.
Number Base ConverterConvert numbers between binary, octal, decimal and hexadecimal.
Scientific Notation ConverterConvert a standard number into scientific notation.
Rounding CalculatorRound a number to a given number of decimal places using round, floor or ceiling.
Prime Number CheckerCheck whether a number is prime and see its factors if it isn't.
Significant Figures CalculatorCount the significant figures in a number and round to a chosen number of sig figs.
Half-Life CalculatorCalculate the remaining quantity of a substance after radioactive or exponential decay.
Density CalculatorCalculate density from mass and volume, or solve for mass or volume.
Linear Interpolation CalculatorEstimate an unknown value between two known data points using linear interpolation.
Percentage Error CalculatorCalculate the percentage error between an experimental value and a true value.
Z-Score CalculatorCalculate the z-score (standard score) of a value given the mean and standard deviation.
Weighted Average CalculatorCalculate a weighted average from a list of values and their corresponding weights.
Proportion CalculatorSolve for the missing value in a proportion, A/B = C/D.
Right Triangle Trig CalculatorSolve a right triangle's sides and angles given one side and one angle.
Modulo CalculatorCalculate the remainder when one number is divided by another (a mod b).
Mean, Median & Mode CalculatorCalculate the mean, median and mode of a list of numbers in one step.
Statistical Range CalculatorFind the range (spread between highest and lowest value) of a data set.
Arithmetic Sequence CalculatorFind any term and the sum of an arithmetic sequence given the first term and common difference.
Geometric Sequence CalculatorFind any term and the sum of a geometric sequence given the first term and common ratio.
Fibonacci Sequence CalculatorGenerate the Fibonacci sequence up to a given term and find the nth Fibonacci number.
Prime Factorization CalculatorBreak a number down into its prime factors.
Linear Equation SolverSolve a linear equation of the form ax + b = c for x.
System of Equations SolverSolve a system of two linear equations with two unknowns using Cramer's rule.
3D Distance CalculatorCalculate the distance between two points in 3D space.
3D Midpoint CalculatorFind the midpoint between two points in 3D space.
Vector Magnitude CalculatorCalculate the magnitude (length) of a 2D or 3D vector.
Vector Addition CalculatorAdd or subtract two vectors component-wise.
Dot Product CalculatorCalculate the dot product of two vectors and the angle between them.
Cross Product CalculatorCalculate the cross product of two 3D vectors.
3x3 Matrix Determinant CalculatorCalculate the determinant and trace of a 3x3 matrix.
Matrix Multiplication CalculatorMultiply two 2x2 matrices together.
Slope-Intercept Form CalculatorFind the equation of a line (y = mx + b) that passes through two points.
Law of Cosines CalculatorFind the third side of a triangle given two sides and the included angle (SAS).
Law of Sines CalculatorFind the remaining sides and angle of a triangle given two angles and one side (AAS/ASA).
Complex Number CalculatorAdd, subtract, multiply and divide complex numbers, and find magnitude and angle.
Odds Converter (American, Decimal, Fractional)Convert betting odds between American, decimal and fractional formats, and see the implied probability.
Normal Distribution CalculatorFind the probability (area under the curve) for a value in a normal distribution.
Sample Size CalculatorCalculate the minimum sample size needed for a survey at a given confidence level and margin of error.
Percentile CalculatorFind the value at a given percentile within a data set.
Exponential Growth & Decay CalculatorModel exponential growth or decay given an initial value, rate and time period.
Root Mean Square (RMS) CalculatorCalculate the root mean square of a list of numbers.
Vertex of a Parabola CalculatorFind the vertex, axis of symmetry and vertex-form equation of a parabola y = ax² + bx + c.
Covariance CalculatorCalculate the sample covariance between two paired data sets.
Expected Value CalculatorCalculate the expected value of a discrete random variable from its outcomes and probabilities.
Floor & Ceiling Function CalculatorCalculate the floor, ceiling and rounded value of a number.
Absolute Value Equation SolverSolve an absolute value equation of the form |ax + b| = c.
Linear Inequality SolverSolve a linear inequality of the form ax + b > c (or <, ≥, ≤).
Cubic Equation SolverSolve a cubic equation of the form ax³ + bx² + cx + d = 0 using Cardano's formula.
2x2 Matrix Inverse CalculatorCalculate the inverse of a 2x2 matrix.
Matrix Transpose CalculatorCalculate the transpose of a 2x3 or 3x2 matrix by flipping rows and columns.
Binary Arithmetic CalculatorAdd, subtract, or multiply two binary numbers and see the result in binary and decimal.
Polynomial Long Division CalculatorDivide a polynomial by a linear divisor (x - r) using synthetic division to find the quotient and remainder.
Geometric Mean CalculatorCalculate the geometric mean of a list of positive numbers.
Harmonic Mean CalculatorCalculate the harmonic mean of a list of numbers, commonly used for averaging rates.
Angle Between Vectors CalculatorCalculate the angle between two 2D or 3D vectors using the dot product formula.
Vector Projection CalculatorCalculate the projection of one vector onto another.
Unit Vector CalculatorNormalize a vector to find its unit vector (a vector with the same direction and length 1).
Polar to Rectangular Coordinate ConverterConvert between polar coordinates (r, θ) and rectangular (Cartesian) coordinates (x, y).
Permutations with Repetition CalculatorCalculate the number of ways to arrange items in a sequence when repetition is allowed.
Trapezoid Area CalculatorCalculate the area of a trapezoid from its two parallel side lengths and height.
Regular Polygon Area CalculatorCalculate the area of a regular polygon (equal sides and angles) from its number of sides and side length.
Pyramid Volume CalculatorCalculate the volume of a pyramid from its base area and height.
Cone Surface Area CalculatorCalculate the total and lateral surface area of a cone from its radius and height.
Circle Sector Area CalculatorCalculate the area of a circular sector (a pie-slice shape) from its radius and central angle.
Arc Length CalculatorCalculate the length of a circular arc from its radius and central angle.
Circle Chord Length CalculatorCalculate the length of a chord in a circle from its radius and central angle.
Logarithm Change of Base CalculatorCalculate a logarithm in any base using the change of base formula.
Polynomial Evaluation CalculatorEvaluate a polynomial at a specific value of x using Horner's method.
Compound Inequality SolverSolve a compound inequality of the form a < bx + c < d for the range of x.
Modular Inverse CalculatorCalculate the modular multiplicative inverse of a number, used in modular arithmetic and cryptography.
Ellipse Area CalculatorCalculate the area of an ellipse from its semi-major and semi-minor axes.
Torus Volume CalculatorCalculate the volume of a torus (donut shape) from its tube radius and center-to-tube distance.

About Math Calculators

From a full scientific calculator to statistics, geometry and algebra tools, this section covers the math that comes up constantly in school, work and everyday problem-solving - built to show correct, precise results instantly instead of you reaching for a physical calculator or working it out by hand.

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