Math Calculators
A scientific calculator, fractions, percentages, geometry and statistics, with the working shown.
- Scientific CalculatorA free online scientific calculator with trigonometry, logarithms, powers, roots and factorials.
- Fractions CalculatorAdd, subtract, multiply and divide fractions, with the answer simplified and shown as a mixed number.
- Decimal to Fraction ConverterConvert a decimal to a fraction in its simplest form.
- Percentage CalculatorAnswer the three everyday percentage questions: X% of Y, X as a percent of Y, and X is Y% of what.
- Percentage Change CalculatorCalculate the percentage increase or decrease from one number to another.
- Hex to Decimal ConverterConvert between hexadecimal, decimal, binary and octal numbers.
- Density CalculatorCalculate density from mass and volume, in metric or imperial units.
- Triangle CalculatorFind the area, perimeter and angles of a triangle from its three sides.
- Pythagorean Theorem CalculatorSolve a right triangle for the hypotenuse or a missing leg.
- Circle CalculatorFind a circle's area, circumference, diameter and radius from any one of them.
- Quadratic Formula CalculatorSolve any quadratic equation and see its roots, discriminant and vertex.
- GCF and LCM CalculatorFind the greatest common factor and least common multiple of two or more whole numbers.
- Standard Deviation CalculatorCalculate standard deviation, variance, mean, median, mode and range for a list of numbers.
- Random Number GeneratorGenerate one or many random whole numbers in any range, with or without repeats.
- Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals back to numbers.