Calculatrices
Des pourcentages et moyennes aux nombres premiers, factorielles et équations du second degré, ces calculatrices résolvent les mathématiques du quotidien avec des résultats détaillés étape par étape. Des réponses exactes pour les élèves, les enseignants, les ingénieurs et les acheteurs.
Percentage Calculator
Three percentage problems solved: of, is-what-percent, and change.
Average Calculator
Mean, median, mode, range and standard deviation in one step.
GCD & LCM Calculator
Greatest common divisor and least common multiple of any numbers.
Prime Number Checker
Test primality and get the full prime factorisation.
Factorial Calculator
Compute n! exactly — even for huge numbers — with digits count.
Logarithm Calculator
Compute logs in any base — 2, e, 10 or custom.
Exponent Calculator
Raise any number to any power, including negatives and fractions.
Square Root Calculator
Square roots and any nth root, to high precision.
Quadratic Equation Solver
Solve ax² + bx + c = 0 with discriminant and complex roots.
Number to Words Converter
Write numbers in words — international and Indian systems.
Ratio Calculator
Simplify ratios and solve for the missing value A:B = C:?
Rounding Calculator
Round numbers up, down or to decimal places — all methods compared.
Fraction Simplifier
Reduce fractions to lowest terms, with decimal and mixed output.