Mathematics calculators

Fast, exact answers for the arithmetic and statistics problems that come up in study and work, with the working shown step by step.

• Average Calculator (Mean, Median, Mode)Mean, median, mode, range and totals from any list of numbers.
• Exponent & Logarithm CalculatorPowers, plus logarithms to any base.
• GCD & LCM CalculatorGreatest common divisor and lowest common multiple of any set of integers.
• Percentage CalculatorEvery common percentage question in one tool.
• Prime Number CalculatorTest whether a number is prime and see its full factorisation.
• Quadratic Equation CalculatorRoots, discriminant and vertex for ax² + bx + c = 0.
• Random Number GeneratorRandom integers in any range, with optional uniqueness.
• Ratio CalculatorSimplify ratios, scale them, and solve for a missing term.
• Square Root & Root CalculatorSquare roots, cube roots and any nth root, plus squares.
• Standard Deviation CalculatorPopulation and sample standard deviation, variance and mean.

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