Maths calculators

Percentages, averages, equations and shapes, with the working shown rather than just an answer.

Percentages & ratios

2

Percentage Change CalculatorPercent change, % of, reverse percentage, with working. Ratio CalculatorSimplify ratios and share an amount.

Statistics & algebra

3

Average CalculatorMean, median, mode and range from a pasted list. Standard Deviation CalculatorSample or population standard deviation and variance. Quadratic Equation SolverRoots, discriminant and vertex of a quadratic.

Number theory & geometry

3

HCF and LCM CalculatorHCF and LCM of up to six numbers, with working. Prime Factorization CalculatorPrime factors, divisors and a prime check. Pythagorean Theorem CalculatorHypotenuse or missing leg, plus area and angles.

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