🔢 Basic Calculator

Fast arithmetic with full keyboard support

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💡 Tip: Use your keyboard to type numbers and operators

About This Online Calculator

This is a clean, fast, and free basic online calculator. It handles all four arithmetic operations: addition, subtraction, multiplication, and division. You can also compute percentages and toggle positive/negative numbers.

The calculator supports full keyboard input — type numbers and press +, -, *, / operators directly. Press Enter or = to evaluate. Press Escape or A to clear. It works instantly with no loading, no signup, and no ads.

Frequently Asked Questions

Does the calculator support keyboard shortcuts?

Yes. Type numbers and operators directly (0-9, +, -, *, /). Press Enter or = to calculate. Press Backspace to delete the last digit. Press Escape or A to clear all.

Can I calculate percentages?

Yes. Enter a number and press % to convert it to its percentage equivalent (divides by 100). For a full-featured percentage tool, visit our Percentage Calculator.

Does it work without internet?

Yes. All calculations happen entirely in your browser. After the page loads once, it can work without an active internet connection.