Numbers & calculations
Calculator
A clear head for everyday numbers. Simple calculations, without the clutter.
This session
How it works
Calculator
Use the keypad or type an expression. Multiplication and division come before addition and subtraction; parentheses change that order.
Try an example
2 + 3 × 4 = 14
Good to know
Decimal arithmetic, up to 30 significant digits. Division by zero is undefined. History lasts only for this page visit.
Updated · 2026-09-22