Math Calculators.

Percentage Calculator

Percentages, changes, and ratios.

Scientific Calculator

Trig, logs, powers, and more.

Fraction Calculator

Add, subtract, multiply, divide fractions.

Average Calculator

Mean, median, mode, range, and sum.

Standard Deviation

Population and sample std dev.

Ratio Calculator

Simplify ratios and solve for missing values.

Percentage Increase

Find % increase or new value.

Percentage Decrease

Find % decrease or new value.

Exponent Calculator

Base raised to any power.

Log Calculator

Logarithms with any base.

GCF Calculator

Greatest Common Factor of any numbers.

LCM Calculator

Least Common Multiple with factorisation.

Prime Number Calculator

Check primes, factorise, and list primes.

Probability Calculator

P(A), P(B), P(A or B), complements.

Mean Median Mode Calculator

Mean, median, mode, range, std dev.

Percent Error Calculator

Experimental vs theoretical value error.

Quadratic Equation Calculator

Solve ax² + bx + c = 0 instantly.

Triangle Calculator

Area, perimeter, and angles from any 3 values.

Matrix Calculator

Add, multiply, determinant, inverse, transpose.

Permutation Calculator

nPr — arrangements where order matters.

Combination Calculator

nCr — selections where order does not matter.

Z-Score Calculator

Standard score and percentile from normal distribution.

Random Number Generator

Single numbers, sets, or dice rolls.

Sequence Calculator

Find nth term and sum of any sequence.

Arithmetic Sequence Calculator

nth term, common difference, and sum.

Geometric Sequence Calculator

nth term, common ratio, and sum.

Binomial Calculator

Binomial probability and distribution.

Vector Calculator

Add, subtract, dot product, cross product, magnitude.

Scientific Notation Calculator

Convert between standard and scientific notation.

Binary Calculator

Add, subtract, multiply, divide binary numbers.

Hex Calculator

Hexadecimal arithmetic and base conversions.

Decimal to Fraction Calculator

Convert any decimal to its simplest fraction.

Fraction to Decimal Calculator

Convert any fraction to its decimal equivalent.

Half-Life Calculator

Radioactive decay and half-life calculations.

Slope Calculator

Slope, distance, angle, and midpoint from two points.

Sample Size Calculator

Required sample size for statistical surveys.

Confidence Interval Calculator

Confidence intervals for means and proportions.

Distance Calculator

Distance between two points in 2D or 3D.

Circle Calculator

Area, circumference, diameter from any one value.

Surface Area Calculator

Surface area of sphere, cylinder, cone, cube.

Pythagorean Theorem Calculator

Find any side of a right triangle.

Root Calculator

Square root, cube root, and nth root.

Factor Calculator

All factors and prime factorization.

Rounding Calculator

Round to decimal places or significant figures.

P-Value Calculator

P-value from z-score or t-statistic.

Statistics Calculator

Full descriptive statistics from a dataset.

Long Division Calculator

Step-by-step long division with remainder shown.

Fibonacci Calculator

nth Fibonacci term, sequence, and golden ratio.

Number Base Converter

Convert between binary, octal, decimal, hex, and any base.