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Math calculators

Solve percentages, equations, fractions, ratios, coordinate geometry and everyday number problems.

Percentage calculatorFind percentages, increases and decreases.Percentage difference calculatorCompare two values using their absolute difference relative to their average magnitude.Fraction calculatorAdd two fractions and simplify the result.Scientific notation calculatorExpress a finite non-zero number as a coefficient multiplied by a power of ten.Quadratic formula calculatorSolve ax² + bx + c = 0 for real or complex roots.Distance between two points calculatorCalculate the straight-line Euclidean distance between two points in a coordinate plane.

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These tools show the formula and worked example so results can be checked independently. Combined calculators cover closely related intents where separate pages would add little value, while focused pages are reserved for genuinely distinct methods and questions.

All tools in this category

Percentage calculatorFind percentages, increases and decreases.Percentage changeMeasure percentage increase or decrease.Square root calculatorFind the principal square root of a non-negative number.Cube root calculatorFind the real cube root of any number.Exponent calculatorRaise a base to any finite power.GCF/GCD calculatorFind the greatest common divisor of two integers.LCM calculatorFind the least common multiple of two integers.Prime number checkerCheck whether a whole number is prime.Rounding calculatorRound a number to a chosen number of decimal places.Pythagorean theorem calculatorFind a right triangle hypotenuse from two perpendicular sides.Slope calculatorCalculate the slope between two coordinate points.Fraction calculatorAdd two fractions and simplify the result.Fraction to decimal calculatorConvert a numerator and denominator into a decimal.Fraction to percentage calculatorConvert any fraction into a percentage.Decimal to fraction calculatorConvert a finite decimal to a simplified fraction.Ratio calculatorSimplify a two-number ratio to whole-number terms.Proportion calculatorSolve a proportional equation a/b = c/x.Logarithm calculatorCalculate a logarithm using any valid positive base.Factor calculatorList every positive factor of a whole number.Quadratic formula calculatorSolve ax² + bx + c = 0 for real or complex roots.Absolute value calculatorFind a number’s non-negative distance from zero on the number line.Distance between two points calculatorCalculate the straight-line Euclidean distance between two points in a coordinate plane.Midpoint calculatorFind the coordinate exactly halfway between two points in a Cartesian plane.Mixed number calculatorConvert an improper fraction into a simplified mixed number and decimal value.Percentage difference calculatorCompare two values using their absolute difference relative to their average magnitude.Scientific notation calculatorExpress a finite non-zero number as a coefficient multiplied by a power of ten.Simplify fractions calculatorReduce a numerator and denominator to equivalent lowest terms with a positive denominator.
Statistics calculatorsSummarize datasets with mean, median, mode, range, variance and standard deviation.Education calculatorsCalculate grades, weighted GPA, percentages and descriptive statistics.Business calculatorsCalculate pricing, profit, commission, tax, discounts, growth and break-even points.