Calculator
A clean browser calculator with +, -, ×, ÷, %, √, x², 1/x, and sign toggle.
How to use this tool
- 1Click digit and operator buttons to build an expression.
- 2Press = to evaluate.
- 3Press C to clear, or ⌫ to delete the last digit.
About Calculator
Sometimes you just need a calculator without opening a new app or tab. This browser-based calculator provides a 4×5 button grid with the standard operations: digits 0-9, decimal point, addition, subtraction, multiplication (×), division (÷), percentage (%), square root (√), square (x²), reciprocal (1/x), sign toggle (±), clear (C), and backspace (⌫). The expression is evaluated using the Function constructor with 'use strict' for safety. Infinity and -Infinity are displayed as ∞ and -∞. Results are formatted to 10 decimal places with trailing zeros removed. The display shows the current expression above the result. The = button is styled in brand blue; operator buttons are styled differently from digit buttons for visual clarity. Runs entirely in your browser with no install required.
Frequently asked questions
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