🔢 Calculator
Standard calculator with keyboard support.
Tip: use your keyboard for faster input.
Frequently Asked Questions
How do I use the Calculator?
Click the on-screen number and operator buttons (or type using your keyboard) to build an expression, then press = or Enter to see the result. Use AC to clear, +/− to flip the sign, and % for percentages.
Can I use my keyboard with this calculator?
Yes — number keys, +, −, ×, /, Enter (for =), Backspace and Escape (clear) all work, so you can calculate without touching the on-screen buttons.
Does this calculator follow order of operations (BODMAS)?
Yes — multiplication and division are evaluated before addition and subtraction, following standard arithmetic order of operations.
Is my calculation history saved anywhere?
No — everything runs locally in your browser. Nothing is saved or sent to a server, and the history clears when you reload the page.
I need trigonometry, logarithms or powers — is there a more advanced calculator?
Yes — use our Scientific Calculator for sin/cos/tan, logarithms, powers, roots and memory functions.
What happens if I divide by zero?
The display shows "Error" instead of a number. Press AC to clear it and start a new calculation — dividing by zero is not a valid operation, so no result is returned.
Is there a limit to how many digits I can enter?
Yes — the display accepts up to 15 digits per number. The decimal point button only works once per number, so typing another "." after one is already present is ignored.