Math calculators

Clear, practical math without the busywork. Every tool is free, fast and private.

ДОСТУПНО СЕЙЧАС

Выберите калькулятор

5 tools available now.

Решите самый распространенный вопрос о процентах за один шаг.

Мгновенно переводите распространенные единицы длины, массы, объема и температуры.

Plot up to three functions, inspect their domain and estimate visible roots without sending formulas to a server.

Solve linear and quadratic equations, including repeated, complex, identity and no-solution cases.

Create and share a private calculator from a formula using variables a, b and c.

ИСПОЛЬЗОВАНИЕ ЭТИХ ИНСТРУМЕНТОВ

Each math tool shows the relationship behind the result so it can be checked and reused.

Values are calculated locally with JavaScript and formatted only after the underlying calculation is complete.