Free Online Calculators
Accurate, fast, and free calculators for math, science, health, finance, and everyday use.
Topic Calculator Hubs
Complex number calculator collection
Four arithmetic operations of complex numbers, conjugation, argument, square root, power operation and form conversion.
Matrix calculator collection
Matrix operations, matrix inversion, determinants, and linear equations tools.
Collection of statistics and probability calculators
Variance, standard deviation, correlation coefficient, covariance, and common probability distributions.
Analytical geometry calculator collection
Analysis of distances, intersections, tangents, circles, conics, and coordinate geometry.
Math
Adding calculator
Free online addition calculator
Subtraction Calculator
Free online subtraction calculator
multiplication calculator
Free online multiplication calculator
division calculator
Free online division calculator
Exponential calculator
Free online index calculator
Factorial Calculator
Free online factorial calculator
logarithm calculator
Free online logarithm calculator
Natural logarithm calculator
Free online natural logarithm calculator
Antilog calculator
Free online antilog calculator
Root Calculator
Free Online Root Calculator
Scientific notation calculator
Free online scientific notation calculator
scientific calculator
Advanced online scientific calculator
Sin / Cos / Tan Calculator
Trigonometry Calculator
quadratic equation solver
Solve for ax² + bx + c = 0
square root calculator
Calculate square, cube, and nth roots
Fraction Calculator
Addition, subtraction, multiplication and division of fractions
Pythagorean Theorem Calculator
Find the missing side of a right triangle
Statistical Calculator
mean, median, mode, standard deviation
average calculator
Free Online Average Calculator
Standard deviation calculator
Free Online Standard Deviation Calculator
Variance Calculator
Free Online Variance Calculator
Weighted average calculator
Free Online Weighted Average Calculator
GCF Calculator
Free online greatest common divisor calculator
LCM Calculator
Free online least common multiple calculator
ratio calculator
Free online ratio calculator
Exponential Growth Calculator
Free Online Exponential Growth Calculator
random number generator
Free online random number generator
Binary/hex converter
Convert between binary, decimal, hexadecimal, and octal
hexadecimal converter
Free online hexadecimal converter
Permutation and combination calculator
Free online permutation calculator
Prime number judge
Free online prime number judger
angle converter
Free online angle converter
Factoring Calculator
Free Online Factoring Calculator
Modulo operation calculator
Free online modulo arithmetic calculator
Inverse Trigonometric Calculator
Free online inverse trigonometric functions calculator
Rounding calculator
Free online rounding calculator
linear equation solver
Free online linear equation solver
Solver for systems of linear equations in two variables
Free online quadratic equations solver
Triangle Calculator
Free online triangle calculator
Radical Simplification Calculator
Free Online Radical Simplification Calculator
Cubic equation solver
Free online cubic equation solver
Fibonacci Sequence Calculator
Online Fibonacci Sequence Generation Tool
Arithmetic Sequence Calculator
Online arithmetic sequence calculation tool
Geometric Sequence Calculator
Online geometric sequence calculation tool
Logarithmic conversion calculator
Online logarithmic conversion tool
Infinite geometric series calculator
Online infinitegeometricseries calculation tools
Set operation calculator
Online setoperations calculation tool
Bitwise calculator
Online bitoperations calculation tool
Divisibility check calculator
Online DivisibilityChecker Calculation Tool
Conjugate complex numbers calculator
Online complex conjugate calculation tool
Argument Principal Value Calculator
Online complex argument calculation tool
Expected variance calculator
Online expectationvariance calculation tool
prime number generator
Online primegenerator calculation tool
determinant calculator
Online determinant calculation tool
Hyperbolic Function Calculator
Online hyperbolicfunctions calculation tool
Inverse hyperbolic function calculator
Online inverse hyperbolic function calculation tool
primefactorization calculator
Online primefactorization calculation tool
Complex number arithmetic calculator
Online complex number arithmetic operation tool
Plural form conversion calculator
Online complexformconverter calculation tool
Matrix operation calculator
Online matrixoperations calculation tool
Complex number square root calculator
Online complexsquareroot calculation tool
Binomial Distribution Calculator
Online binomialdistribution calculation tool
Poisson Distribution Calculator
Online poissondistribution calculation tool
Normal distribution calculator
Online normaldistribution calculation tool
Geometric distribution calculator
Online geometricdistribution calculation tool
Correlation coefficient calculator
Online correlationcoefficient calculation tool
Logic truth table generator
Online truthtable calculation tool
boolean expression reducer
Online booleansimplification calculation tool
Integer splitting calculator
Online integerpartition calculation tool
Recursive Sequence Calculator
Online recursivesequence calculation tool
perfect number judge
Online perfectnumber calculation tool
Cattleya number calculator
Online catalannumber calculation tool
Gamma function calculator
Online gammafunction calculation tool
Fraction Simplification Calculator
Online fractionsimplification calculation tool
Radical Simplification Calculator
Online radicalsimplification calculation tool
Absolute Value Equation Calculator
Online absolute value equation solver tool
Parametric Equations Calculator
Online parametric equation calculation tool
Matrix inversion calculator
Online matrix inversion calculation tool
Complex number exponentiation calculator
Online complex number exponentiation tool
Hypergeometric Distribution Calculator
Online hypergeometric distribution probability calculation tool
Covariance Calculator
Online covariance calculation tool
Geometry
circle calculator
Calculate area, perimeter, diameter from radius
area calculator
Calculate the area of rectangles, triangles, circles, etc.
Volume calculator
Volume of cube, sphere, cylinder, cone
Point to straight line distance calculator
Online pointtolinedistance calculation tool
Line intersection calculator
Online lineintersection calculation tool
Polygon area calculator
Online polygonarea calculation tool
Circle Equation Calculator
Online circleequation calculation tool
Conic Section Calculator
Online conicsections calculation tool
Triangle Five Centers Calculator
Online trianglecenters calculation tool
Point to plane distance calculator
Online pointtoplanedistance calculation tool
Tangent Equation Calculator
Online tangent equation calculation tool
Health
Everyday
age calculator
Calculate exact age based on date of birth
percentage calculator
Calculate percentage, increase, decrease
Percent change calculator
Free Online Percent Change Calculator
Percent Growth Calculator
Free Online Percent Growth Calculator
Percent Error Calculator
Free Online Percent Error Calculator
Tip Calculator
Calculate tips and split the bill
Discount Calculator
Calculate the discounted price
Converters
Physics
Finance
Education
Auto
Electricity
Electricity bill calculator
Free online electricity bill calculator
Energy consumption calculator
Free online energy consumption calculator
Ohm's Law Calculator
Free Online Ohm's Law Calculator
Power calculator
Free online power calculator
Watt/Kw Converter
Free online watt to kilowatt converter
Lumens to Watts converter
Free online lumens to watts converter
Watts to Lumens Converter
Free Online Watts to Lumens Converter
Illuminance calculator
Free online illuminance calculator