Math Calculators

Acceleration Calculator

Calculate physics acceleration

Anderson-Darling Test

Test for normality

ANOVA Calculator

One-way Analysis of Variance

Arc Length Calculator

Calculate arc length of a circle

Arithmetic Sequence

Calculate terms in arithmetic progression

Bartlett's Test

Test for homogeneity of variances

Basic Calculator

Standard arithmetic operations

Bayes Theorem

Calculate conditional probability

Binary Calculator

Binary math operations

Binomial Distribution

Binomial probability measures

Bitwise Calculator

AND, OR, XOR operations

Bray-Curtis Dissimilarity

Ecological dissimilarity measure

Canberra Distance

Weighted distance metric

Capacitance Calculator

Calculate capacitor properties

Chebyshev Distance

Maximum coordinate distance

Chi-Square Calculator

Goodness of fit and independence tests

Circle Calculator

Area, circumference, and radius

Cochran's Q Test

Non-parametric test for matched groups

Combination Calculator

Calculate nCr

Completing the Square

Solve quadratics by completing the square

Cone Volume Calculator

Volume and surface area of a cone

Confidence Interval

Calculate CI for means

Correlation Coefficient

Pearson correlation (r)

Cosine Similarity

Similarity between two vectors

Coterminal Angle

Find positive and negative coterminal angles

Covariance Calculator

Measure joint variability

Cramer's V

Nominal association strength

Cronbach's Alpha

Internal consistency reliability

Cross Product

Vector cross product

Cube Calculator

Volume and surface area of a cube

Cylinder Calculator

Volume and surface area of a cylinder

Decimal to Fraction

Convert decimals to fractions

Density Calculator

Calculate mass, volume, or density

Descriptive Statistics

Mean, median, mode, SD, and more

Determinant Calculator

Calculate matrix determinant

Dice Coefficient

Set similarity index

Discriminant Calculator

Calculate polynomial discriminant

Distance Formula

Distance between two points

Dot Product

Vector dot product

Durbin-Watson Test

Detect autocorrelation

Effect Size Calculator

Calculate Cohen's d

Ellipse Calculator

Area and perimeter of an ellipse

Empirical Rule

68-95-99.7 rule calculator

Entropy Calculator

Shannon entropy uncertainty

Euclidean Distance

Standard distance metric

Exponent Calculator

Power and exponent calculations

Factor Calculator

Find all factors of a number

Factorial Calculator

Calculate n!

Fibonacci Sequence

Generate Fibonacci numbers

Fisher's Exact Test

Significance test for 2x2 tables

Force Calculator

Calculate Force (F=ma)

Fraction Calculator

Fraction arithmetic

Fraction Simplifier

Reduce fractions to lowest terms

Friedman Test

Non-parametric repeated measures

GCD Calculator

Greatest Common Divisor

Geometric Distribution

Probability of first success

Geometric Sequence

Calculate terms in geometric progression

GPA Calculator

Calculate High School & College GPA (4.0 scale)

Grade Calculator

Calculate Weighted & Final Grades

Graphing Calculator

Plot functions and equations online

Grubbs' Test

Outlier detection

Half-Life Calculator

Radioactive decay calculator

Hamming Distance

String difference metric

Haversine Distance

Great-circle distance

Hex Calculator

Hexadecimal operations

Hexagon Calculator

Area of hexagon

Hooke's Law Calculator

Calculate force F=-kx

Hypergeometric Dist.

Sampling without replacement

Inductance Calculator

Coil inductance

IQR Calculator

Interquartile Range

Inverse Matrix

Calculate matrix inverse

Jaccard Index

Intersection over Union

Jarque-Bera Test

Normality test on skew/kurtosis

Kappa Statistic

Inter-rater reliability

Kendall's Tau

Rank correlation coefficient

Kinematic Equations Calculator

Solve physics motion problems

Kinetic Energy

Energy of motion

Kite Calculator

Area of a kite

KS Test Calculator

Kolmogorov-Smirnov normality test

Kruskal-Wallis Test

Non-parametric ANOVA

Kurtosis Calculator

Calculate distribution tailedness

LCM Calculator

Least Common Multiple

LED Resistor Calculator

Calculate series resistor

Levene's Test

Equality of variances

Levenshtein Distance

String edit distance

Linear Regression

Simple linear regression model

Logarithm Calculator

Log base 2, e, 10

MAE Calculator

Mean Absolute Error

Mahalanobis Distance

Multivariate distance

Manhattan Distance

Taxicab geometry distance

Mann-Whitney U

Wilcoxon rank-sum test

Margin of Error

Survey sampling error

Matrix Addition

Add two matrices

Matrix Calculator

Solve matrices: Mult, Det, Inv

Matrix Multiplication

Multiply matrices

McNemar's Test

Paired nominal data test

Mean Median Mode

Central tendency statistics

Midpoint Calculator

Midpoint of a line segment

Minkowski Distance

Generalized Lp distance

Modulo Calculator

Remainder calculation

Momentum Calculator

Calculate p=mv

Negative Binomial

Probability of k failures

Newton's Second Law

Calculate Force, Mass, Acceleration

Octagon Calculator

Area of octagon

Ohm's Law Calculator

Voltage, Current, Resistance

Overlap Coefficient

Szymkiewicz–Simpson overlap

Parallelogram

Area and perimeter

Pentagon Calculator

Area of pentagon

Percentage Calculator

Calculate percentages of numbers

Percentage Change Calculator

Calculate percent increase/decrease

Percentage Difference Calculator

Calculate difference between two numbers

Percentile Rank Calculator

Find percentile of a value

Permutation Calculator

Calculate nPr

Phi Coefficient

Binary correlation

Point Biserial

Binary-Continuous correlation

Poisson Distribution

Poisson probability

Polygon Calculator

Regular polygon properties

Potential Energy Calculator

Calculate PE=mgh

Power Calculator

Calculate electrical power

Pressure Calculator

Calculate pressure P=F/A

Prime Factorization

Find prime factors

Prime Number Checker

Check if a number is prime

Probability Calculator

Basic probability events

Projectile Motion

Physics trajectory calculation

Pythagorean Theorem

Find triangle sides

Quadratic Formula

Solve quadratic equations

Quartile Calculator

Q1, Q2, Q3 statistics

Rectangle Calculator

Area and perimeter

Reference Angle

Find reference angle

Rhombus Calculator

Area of rhombus

Right Triangle

Solve right triangles

RMS Voltage

Root Mean Square voltage

RMSE Calculator

Root Mean Square Error

Root Calculator

Square root and nth root

Rounding Calculator

Round numbers

Sample Size

Calculate required sample size

Scientific Calculator

Advanced math functions

Scientific Notation

Convert to sci notation

Sector Area

Area of circle sector

Shapiro-Wilk Test

Normality test

Sig Fig Calculator

Significant figures

Sign Test

Non-parametric median test

SNR Calculator

Signal-to-Noise Ratio

Skewness Calculator

Calculate distribution skew

Slope Calculator

Slope of a line

Spearman's Rho

Rank correlation

Speed Distance Time

Calculate Speed, Distance, or Time

Speed of Sound

Calculate speed in air vs temp

Sphere Calculator

Volume and surface area

Square Calculator

Area of square

Standard Deviation

SD and Variance

Summation Calculator

Sigma notation summation

T-Test Calculator

Student's t-test

Tetrahedron Calculator

Volume of tetrahedron

Theil's U

Uncertainty coefficient

Torque Calculator

Calculate torque

Torus Calculator

Volume of torus

Transpose Matrix

Matrix transposition

Trapezoid Calculator

Area of trapezoid

Triangle Calculator

Area and perimeter

Uniform Distribution

Probability density

Unit Vector

Normalize a vector

Vector Magnitude

Length of a vector

Velocity Calculator

Calculate velocity v=d/t

Vertex Calculator

Vertex of parabola

Vincenty Distance

Accurate geodetic distance

Voltage Drop

Calculate voltage drop over wire

Wavelength Calculator

Calculate wave speed v=f*lambda

Wilcoxon Test

Signed-rank test

Work Calculator

Physics work calculation

Z-Score Calculator

Standard score