4 calculators

Online maths calculators

Scientific operations, proportions, fractions and percentages solved step by step.

Scientific calculatorTrigonometry, logarithms, powers and roots.Percent of a number calculatorFind X % of any number in a second.Rule of three calculatorDirect and inverse proportions.Fraction calculatorAdd, subtract, multiply and simplify fractions.

Maths made simple

These calculators handle the most common maths problems at school, at work or at home. The scientific calculator works with trigonometry, logarithms, powers and factorials; the rule of three finds the missing value of a direct or inverse proportion; the fraction calculator adds, subtracts, multiplies and divides fractions and simplifies the result, and the percentage calculator gives you any percentage in a moment.

All of them update the result as you type and explain the formula used, so you can check the calculation and learn how to do it by hand.