Math Calculators
Solve common arithmetic, algebra, geometry, statistics and number problems with fast interactive tools.
Choose a calculator below to enter your numbers, see the result, and review the method used.
Browse Math Calculators
Scientific Calculator
Trig, logs, powers and roots.
Open calculatorMathFraction Calculator
Add, subtract, multiply and divide fractions.
Open calculatorMathPercent Calculator
Percentages and percentage change.
Open calculatorMathTriangle Calculator
Sides, angles and area of a triangle.
Open calculatorMathVolume Calculator
Volume of common 3D shapes.
Open calculatorMathStandard Deviation Calculator
Spread of a data set.
Open calculatorMathRandom Number Generator
Random numbers in any range.
Open calculatorMathNumber Sequence Calculator
Arithmetic and geometric sequences.
Open calculatorMathPercent Error Calculator
Error between measured and true values.
Open calculatorMathExponent Calculator
Raise any number to a power.
Open calculatorMathBinary Calculator
Binary math and conversions.
Open calculatorMathHex Calculator
Hexadecimal math and conversions.
Open calculatorMathHalf-Life Calculator
Decay over time by half life.
Open calculatorMathQuadratic Formula Calculator
Roots of a quadratic equation.
Open calculatorMathSlope Calculator
Slope between two points.
Open calculatorMathLog Calculator
Logarithms in any base.
Open calculatorMathArea Calculator
Area of common 2D shapes.
Open calculatorMathSample Size Calculator
Survey sample size you need.
Open calculatorMathProbability Calculator
Odds of single and combined events.
Open calculatorMathStatistics Calculator
Key statistics for a data set.
Open calculatorMathMean, Median, Mode, Range Calculator
Mean, median, mode and range.
Open calculatorMathPermutation and Combination Calculator
Count arrangements and selections.
Open calculatorMathZ-Score Calculator
How far a value is from the mean.
Open calculatorMathConfidence Interval Calculator
Range likely to contain the true mean.
Open calculatorMathRatio Calculator
Simplify and scale ratios.
Open calculatorMathDistance Calculator
Distance between two points.
Open calculatorMathCircle Calculator
Radius, diameter, circumference and area.
Open calculatorMathSurface Area Calculator
Surface area of 3D shapes.
Open calculatorMathPythagorean Theorem Calculator
Missing side of a right triangle.
Open calculatorMathRight Triangle Calculator
Solve every part of a right triangle.
Open calculatorMathRoot Calculator
Square, cube and nth roots.
Open calculatorMathLCM Calculator
Least common multiple of numbers.
Open calculatorMathGCF Calculator
Greatest common factor of numbers.
Open calculatorMathFactor Calculator
All factors of a number.
Open calculatorMathRounding Calculator
Round to any place value.
Open calculatorMathMatrix Calculator
Matrix addition, multiplication and more.
Open calculatorMathScientific Notation Calculator
Convert to and from scientific notation.
Open calculatorMathBig Number Calculator
Exact math on very large numbers.
Open calculatorMathPrime Factorization Calculator
Break a number into primes.
Open calculatorMathCommon Factor Calculator
Factors shared by two numbers.
Open calculatorMathBasic Calculator
Simple everyday arithmetic.
Open calculatorMathLong Division Calculator
Division shown step by step.
Open calculatorMathAverage Calculator
Average of a list of numbers.
Open calculatorMathP-Value Calculator
P value from a test statistic.
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