Maths tools
Maths Calculators
Solve common arithmetic, algebra, geometry and statistics tasks quickly, with enough working to help users understand the result.
11 calculators
Choose a quick solver for everyday maths, schoolwork, statistics, geometry and number checks.
MathsPercentageCalculate percentages, percentage change and reverse percentages for discounts, marks and comparisons.MathsScientificEvaluate arithmetic, powers, roots and common trigonometric functions in a clean browser calculator.MathsFractionsAdd, subtract, multiply or divide two fractions and reduce the result.MathsRatioSimplify a ratio, compare parts and scale a ratio to a chosen total.MathsQuadraticSolve ax squared plus bx plus c equals zero and show the discriminant.MathsStandard DeviationCalculate mean, variance and standard deviation from a list of numbers.MathsProbabilityCalculate single-event probability, odds and the chance of at least one success across repeated trials.MathsAreaCalculate the area of a rectangle, triangle, circle or trapezium.MathsVolumeCalculate volume for a cuboid, cylinder, sphere or cone.MathsPrime FactorsBreak a whole number into its prime factors.MathsRandom NumberGenerate repeatable random-style whole numbers from a range and seed.