Everyday arithmetic

Calculator

Use a clean, responsive keypad for quick arithmetic with percentages, parentheses, memory, and local history.

M: 0

Ready

Keyboard: 0–9, +, −, *, /, %, parentheses and decimal point. Enter or = calculates, Backspace deletes the last character, and Esc or Delete clears.

Calculator tips

Percentages

Use 200 × 10% to calculate 10% of 200.

Memory

Use M+, M−, MR, and MC to reuse a value.

Expressions

Build multi-step expressions using parentheses.

Practical guidance

Use the Calculator with confidence

Perform quick everyday arithmetic calculations. Review the example and limitations below before using the result for an important decision.

Worked example

Use 125 × 8 + 250 to verify an everyday arithmetic total while retaining the normal order of operations.

Assumptions and limits

The result follows the displayed mathematical operation and browser precision. Check units, signs, rounding, and the intended percentage base.

How to read the result

Calculations run from the values you enter using the formula described on this page. Inputs are processed in your browser and results are rounded for display.

Calculation methodology

Educational estimate only. Verify regulated financial, tax, employment, or legal decisions with an official source or qualified professional.

Read our calculation methodology