Fraction Calculator
Add, subtract, multiply or divide two fractions.
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Free maths, statistics, fractions, probability and geometry calculators.
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Fractions, Ratios & Percentages
Averages, Statistics & Probability
Powers, Roots & Number Tools
Geometry & Coordinate Maths
Fractions, Ratios & Percentages
Back to top ↑Fraction Simplifier
Reduce a fraction to its simplest form.
Open ToolFraction to Decimal Converter
Convert a fraction into a decimal value.
Open ToolDecimal to Fraction Converter
Convert a decimal into a simplified fraction.
Open ToolMixed Number Calculator
Convert a mixed number into an improper fraction.
Open ToolRatio Calculator
Calculate an equivalent ratio from three known values.
Open ToolRatio Simplifier
Simplify a two-part ratio.
Open ToolProportion Calculator
Solve a missing value in a proportion.
Open ToolRule of Three Calculator
Solve a direct proportion using the rule of three.
Open ToolPercentage Difference Calculator
Calculate the percentage difference between two values.
Open ToolPercentage Error Calculator
Calculate percentage error from observed and exact values.
Open ToolReverse Percentage Calculator
Find the original value before a percentage change.
Open ToolPercentage Increase Calculator
Calculate a value after a percentage increase.
Open ToolPercentage Decrease Calculator
Calculate a value after a percentage decrease.
Open ToolAverages, Statistics & Probability
Back to top ↑Weighted Average Calculator
Calculate a weighted average.
Open ToolMean Median Mode Calculator
Calculate mean, median and mode from a list.
Open ToolStandard Deviation Calculator
Calculate population standard deviation.
Open ToolVariance Calculator
Calculate population variance.
Open ToolRange Calculator
Calculate the range of a number list.
Open ToolProbability Calculator
Calculate simple event probability.
Open ToolPermutation Calculator
Calculate permutations nPr.
Open ToolCombination Calculator
Calculate combinations nCr.
Open ToolOdds to Probability Calculator
Convert decimal odds into implied probability.
Open ToolProbability to Odds Calculator
Convert probability into decimal odds.
Open ToolPowers, Roots & Number Tools
Back to top ↑Square Root Calculator
Calculate the square root of a number.
Open ToolCube Root Calculator
Calculate the cube root of a number.
Open ToolExponent Calculator
Raise a base to a power.
Open ToolLogarithm Calculator
Calculate a logarithm with a chosen base.
Open ToolScientific Notation Converter
Convert a number into scientific notation.
Open ToolSignificant Figures Calculator
Round a number to significant figures.
Open ToolRounding Calculator
Round a number to decimal places.
Open ToolPrime Number Checker
Check whether a whole number is prime.
Open ToolFactors Calculator
List all factors of a whole number.
Open ToolHighest Common Factor Calculator
Calculate the highest common factor.
Open ToolLowest Common Multiple Calculator
Calculate the lowest common multiple.
Open ToolAbsolute Value Calculator
Find the absolute value of a number.
Open ToolModulo Calculator
Find the remainder after division.
Open ToolNumber Base Converter
Convert decimal into binary, octal and hexadecimal.
Open ToolGeometry & Coordinate Maths
Back to top ↑Triangle Area Calculator
Calculate triangle area from base and height.
Open ToolTriangle Perimeter Calculator
Calculate the perimeter of a triangle.
Open ToolRight Triangle Calculator
Calculate the hypotenuse of a right triangle.
Open ToolPythagorean Theorem Calculator
Calculate the missing hypotenuse using a² + b² = c².
Open ToolCircle Area Calculator
Calculate the area of a circle.
Open ToolCircle Circumference Calculator
Calculate the circumference of a circle.
Open ToolRectangle Area Calculator
Calculate rectangle area.
Open ToolRectangle Perimeter Calculator
Calculate rectangle perimeter.
Open ToolSquare Area Calculator
Calculate square area.
Open ToolTrapezium Area Calculator
Calculate trapezium area.
Open ToolParallelogram Area Calculator
Calculate parallelogram area.
Open ToolCylinder Volume Calculator
Calculate cylinder volume.
Open ToolCone Volume Calculator
Calculate cone volume.
Open ToolSphere Volume Calculator
Calculate sphere volume.
Open ToolCuboid Volume Calculator
Calculate cuboid volume.
Open ToolCube Volume Calculator
Calculate cube volume.
Open ToolPolygon Interior Angle Calculator
Calculate the sum of polygon interior angles.
Open ToolRegular Polygon Angle Calculator
Calculate each interior angle of a regular polygon.
Open ToolSlope Calculator
Calculate slope between two points.
Open ToolDistance Between Two Points Calculator
Calculate straight-line distance between two points.
Open ToolMidpoint Calculator
Calculate the midpoint between two coordinates.
Open ToolQuadratic Equation Calculator
Solve ax² + bx + c = 0.
Open ToolLinear Equation Calculator
Solve ax + b = c.
Open ToolHeron Formula Calculator
Calculate triangle area from three sides.
Open ToolCircle Diameter Calculator
Calculate diameter from radius.
Open ToolCircle Radius Calculator
Calculate radius from diameter.
Open ToolSphere Surface Area Calculator
Calculate sphere surface area.
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