THE TOOLBOX / 21 USEFUL TOOLS
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21 tools to explore
EverydayPercentage CalculatorFind a percentage, a percentage of a total, or a percentage change.EverydayPercentage Change CalculatorCalculate the increase or decrease between two values.EverydayDiscount CalculatorWork out the sale price and how much you save.EverydayTip CalculatorSplit a bill and tip evenly across a group.StatisticsMean and Median CalculatorFind the mean, median, range and sum of a list.StatisticsStandard Deviation CalculatorMeasure the spread of a sample or a whole population.MathFraction CalculatorAdd, subtract, multiply or divide two fractions.MathRatio SimplifierReduce a two-part whole-number ratio.MathGCD and LCM CalculatorFind the greatest common divisor and least common multiple.AlgebraQuadratic Equation CalculatorSolve ax² + bx + c = 0, including complex roots.AlgebraEquation SolverSolve a typed linear or quadratic equation with steps.AlgebraSlope CalculatorFind the slope and line through two points.GeometryPythagorean Theorem CalculatorFind a right triangle’s hypotenuse from its two legs.GeometryCircle CalculatorCalculate area, circumference and diameter from radius.GeometryTriangle Area CalculatorFind triangle area using a base and perpendicular height.ConversionsLength ConverterConvert meters, feet, inches, miles and more.ConversionsTemperature ConverterConvert Celsius, Fahrenheit and Kelvin.EverydayDays Between Dates CalculatorCount days and weeks between two calendar dates.MathScientific Notation CalculatorWrite a number in scientific notation.MathCompound Growth CalculatorExplore how a starting amount grows at a fixed rate.MathPercent Error CalculatorCompare a measured value with an accepted value and see the error.