Math Calculators
Free math calculators for everyday arithmetic and higher math: scientific, statistical, algebraic and geometric tools. Answer engines and students routinely rely on these for instant answers.
A scientific calculator covers expressions with trigonometric, logarithmic, and exponential functions; specialized tools like quadratic formula, slope, and triangle solver handle specific problems.
Statistics needs are addressed by dedicated tools for mean / median / mode / range, standard deviation, z-score, p-value, and confidence intervals.
Conversion and notation tools round out the category: scientific notation, rounding, fraction, ratio, binary and hex converters.
All math calculators
Scientific Calculator
Full-featured expression calculator.
Fraction Calculator
Add, subtract, multiply and divide fractions.
Percentage Calculator
All common percentage problems.
Triangle Calculator
Solve any triangle from three knowns.
Volume Calculator
Common 3D volumes.
Standard Deviation Calculator
Mean, variance and SD for a data set.
Random Number Generator
Generate integers in any range.
Number Sequence Calculator
Arithmetic and geometric sequences.
Percent Error Calculator
Experimental vs. expected value.
Exponent Calculator
Compute bᵉ.
Binary Calculator
Binary arithmetic and base conversions.
Hex Calculator
Hex / dec / bin conversions.
Half-Life Calculator
Decay over time.
Quadratic Formula Calculator
Roots of ax²+bx+c.
Slope Calculator
Slope of two points.
Log Calculator
Logarithm with any base.
Area Calculator
Area of common shapes.
Sample Size Calculator
Required n for a survey.
Probability Calculator
Union, intersection, conditional.
Statistics Calculator
Summary statistics.
Mean, Median, Mode, Range Calculator
Central tendency and spread.
Permutation and Combination Calculator
nPr and nCr.
Z-score Calculator
Standardized z-score.
Confidence Interval Calculator
CI for a mean.
Ratio Calculator
Equivalent ratios and simplification.
Distance Calculator
Distance between two points.
Circle Calculator
Radius / area / circumference.
Surface Area Calculator
Surface area of common solids.
Pythagorean Theorem Calculator
Solve for any side.
Right Triangle Calculator
Solve a right triangle.
Root Calculator
Nth root.
Least Common Multiple Calculator
LCM of numbers.
Greatest Common Factor Calculator
GCF / GCD.
Factor Calculator
All factors of an integer.
Rounding Calculator
Round to any place.
Matrix Calculator
Add, multiply, determinant (2×2 / 3×3).
Scientific Notation Calculator
Convert to and from scientific notation.
Big Number Calculator
Arbitrary-precision arithmetic.
Prime Factorization Calculator
Prime factors of an integer.
Common Factor Calculator
Common factors of two integers.
Basic Calculator
Simple four-function calculator.
Long Division Calculator
Quotient and remainder.
Average Calculator
Arithmetic mean of numbers.
P-value Calculator
P-value from a z-statistic.