Arithmetic and Fraction Calculators
Arithmetic calculators handle the sums that are slow or error prone by hand: adding and simplifying fractions, turning decimals into fractions, working out powers and roots, rounding to significant figures and writing numbers in scientific notation.
Most tools show the working step by step, which is useful for homework, revision and checking your own answers.
Decimal to Fraction CalculatorTurn a decimal into a fraction in lowest terms, including repeating decimals such as 0.333.Scientific CalculatorType a whole calculation with brackets, powers, roots, logs and trigonometry, and see the answer as you type.Long Division CalculatorDivide any two numbers and see the quotient, the remainder, the decimal answer and every step of the working.Exponent CalculatorRaise any number to a power, including negative, decimal and fraction exponents, with exact answers for whole numbers.Logarithm CalculatorWork out a logarithm to any base, find the natural log, the log to base 10 and base 2, or reverse it to find an antilog.Scientific Notation CalculatorConvert a number to scientific notation (standard form), engineering notation and E notation, or turn it back into a plain number.Factorial CalculatorWork out n factorial exactly, even for large numbers, with the digit count, trailing zeros and the double factorial.Square Root and Nth Root CalculatorFind the square root, cube root or any other root of a number, in simplest radical form, with a check for perfect powers.Rounding and Significant Figures CalculatorRound a number to decimal places, tens and hundreds, or significant figures, using the rule you choose, and count the significant figures in it.Fraction CalculatorAdd, subtract, multiply and divide fractions, simplify them and convert to decimals, with steps.Ratio CalculatorSimplify ratios, scale them up or down, solve a proportion and share a total in a ratio.
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