Mathematics
Calculators related to math, algebra, geometry, and statistics.
Algebra
222×2 Eigenvalue & Eigenvector Calculator2×2 Matrix Inverse Calculator2×2 System of Linear Equations Solver3×3 System of Linear Equations SolverAbsolute Value Equation Solver (|ax + b| = c)Binomial Theorem Calculator — (a + b)ⁿCompleting the Square CalculatorComplex Number CalculatorCubic Equation SolverDefinite Integral of Polynomial CalculatorExponential Growth & Decay CalculatorGaussian Elimination Calculator (3×3)Linear Equation Solver (ax + b = c)Matrix Determinant Calculator (2×2 and 3×3)Matrix Multiplication Calculator (2×2 and 3×3)Partial Fraction Decomposition CalculatorPolynomial Derivative CalculatorPolynomial Evaluator (Horner's Method)Quadratic Discriminant CalculatorQuadratic Equation SolverSimpson's Rule CalculatorTrapezoidal Rule Calculator
2D Geometry
30Annulus Area CalculatorCircle Arc Length CalculatorCircle Area & Circumference CalculatorCircle Equation CalculatorCircle Sector Area CalculatorCircle Segment CalculatorCircumscribed Circle CalculatorDistance Between Two Points CalculatorEllipse Area & Perimeter CalculatorEllipse Foci CalculatorEquilateral Triangle CalculatorGolden Ratio CalculatorHyperbola CalculatorIsosceles Triangle CalculatorLine Equation from Two PointsMidpoint CalculatorParabola Focus and Directrix CalculatorParallelogram Area CalculatorPoint to Line Distance CalculatorPythagorean Theorem CalculatorRegular Polygon CalculatorRhombus Area CalculatorRight Isosceles Triangle Calculator (45-45-90)Right Triangle SolverSlope of a Line CalculatorTrapezoid Area CalculatorTriangle Area CalculatorTriangle Calculator (ASA) — One Side & Two AnglesTriangle Calculator (SAS) — Two Sides & Included AngleTriangle Calculator (SSS) — Three Sides
3D Geometry
12Cone Frustum Calculator (Truncated Cone)Cone Volume & Surface Area CalculatorCube Calculator — Volume, Surface Area & DiagonalsCylinder Volume & Surface Area CalculatorDistance Between Two Points in 3D CalculatorEllipsoid Volume & Surface Area CalculatorHemisphere Calculator (Volume & Surface Area)Pyramid Frustum CalculatorPyramid Volume CalculatorRectangular Prism CalculatorSphere Volume & Surface Area CalculatorTorus Volume Calculator
Trigonometry
10Angle Between Two Vectors CalculatorCross Product Calculator (3D Vectors)Dot Product CalculatorInverse Trigonometric Functions Calculator (arcsin, arccos, arctan)Law of Cosines CalculatorLaw of Sines Calculator — AAS Triangle SolverPolar ⇄ Rectangular Coordinates ConverterTrigonometric Function Calculator (sin, cos, tan)Vector Magnitude CalculatorVector Projection Calculator
Statistics
33Bayes’ Theorem CalculatorChi-Square Goodness-of-Fit TestChi-Square Test of IndependenceCoefficient of Variation CalculatorCohen's d CalculatorConfidence Interval CalculatorConfidence Interval for a Proportion CalculatorCovariance CalculatorDescriptive Statistics CalculatorGeometric Mean CalculatorHarmonic Mean CalculatorLinear Regression CalculatorMargin of Error CalculatorMean Absolute Deviation CalculatorMean, Median, Mode CalculatorNumber Needed to Treat (NNT) CalculatorOdds Ratio CalculatorOne-Sample t-Test CalculatorOne-Way ANOVA CalculatorOutlier Calculator (IQR Method)P-Value from Z-Score CalculatorPearson Correlation Coefficient CalculatorPercentage Error CalculatorPercentile and Quartile CalculatorRelative Risk CalculatorSample Size Calculator (Proportion)Sample Size Calculator for a MeanStandard Error of the Mean CalculatorTwo-Proportion z-Test CalculatorTwo-Sample t-Test Calculator (Welch)Variance and Standard Deviation CalculatorWeighted Average CalculatorZ-Score Calculator
Probability
14Binomial Probability CalculatorCombination Calculator — C(n, r)Conditional Probability and Bayes' Theorem CalculatorDice Probability CalculatorExpected Value CalculatorExponential Distribution CalculatorFactorial CalculatorGeometric Distribution CalculatorNegative Binomial Distribution CalculatorNormal Distribution CalculatorPermutation Calculator — P(n, r)Playing Card Probability CalculatorPoisson Distribution CalculatorUniform Distribution Calculator