Calculators and Converters
Math calculators and unit converters that show the working, not just the answer.
- Online CalculatorType a full expression such as (2+3)*4^2/8 and see the result as you type.
- Percentage CalculatorWork out percentages of numbers, find what percent one value is of another, or measure change.
- Percentage Change CalculatorEnter an old and a new value to see how much it changed in percent.
- Square Root CalculatorCalculate square roots, cube roots and any nth root, with step-by-step simplification.
- Exponent CalculatorRaise a base to any power and see the exact answer when it is a whole number.
- Factorial CalculatorFind n! exactly, even for large numbers, and see how many digits it has.
- Logarithm CalculatorFind the logarithm of a number in any base.
- Number Base ConverterConvert a number between binary, octal, decimal, hexadecimal or any base up to 36.
- Prime Number CheckerFind out if a number is prime and see its prime factorization.
- Fibonacci CalculatorGet any Fibonacci number up to the 5000th, and list the start of the sequence.
- Circle CalculatorEnter one measurement of a circle and get all the others.
- Rectangle CalculatorEnter the length and width to get area, perimeter and diagonal.
- Triangle CalculatorEnter three side lengths to get the area, perimeter and all three angles.
- GCD and LCM CalculatorEnter a list of whole numbers to find their greatest common divisor and least common multiple.
- Average CalculatorPaste a list of numbers to get the mean, median, mode and more.
- Quadratic Equation SolverEnter the coefficients a, b and c to solve a quadratic equation.
- Fraction SimplifierReduce any fraction to its simplest form.
- Random Number GeneratorPick random integers in any range, with or without repeats.
- Length ConverterConvert between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.
- Weight ConverterConvert between milligrams, grams, kilograms, ounces, pounds, stone and tonnes.
- Temperature ConverterConvert between Celsius, Fahrenheit, Kelvin and Rankine.
- Area ConverterConvert square meters, hectares, acres, square feet, square yards and square miles.
- Volume ConverterConvert liters, milliliters, cubic meters, US and UK gallons, quarts, pints, cups and teaspoons.
- Speed ConverterConvert meters per second, kilometers per hour, miles per hour, knots and Mach.
- Data Storage ConverterConvert bits, bytes, KB, MB, GB, TB and the binary units KiB, MiB, GiB and TiB.
- Fuel Economy ConverterConvert between mpg, L/100km and km/L.