Online Calculator
Simple, fast, and free online calculator for everyday math. Supports basic arithmetic, percentages, and keyboard input.
How to Use
Follow these simple steps for quick results
- 1Click numbers and operators on the calculator display
- 2Or use your keyboard to type numbers and operators
- 3Press = or Enter to calculate the result
- 4Use C to clear the current entry or AC to clear all
- 5Click % for percentage calculations
Key Features
🆓 Completely free with no limitations
⚡ Lightning-fast calculations
⌨️ Full keyboard support
📱 Mobile-friendly responsive design
🌐 Works offline after initial load
🔢 Supports decimals and percentages
🔒 Privacy-first: all calculations local
✨ Clean, intuitive interface
Frequently Asked Questions
Is this calculator free to use?
Yes, our online calculator is completely free to use with no registration or downloads required. You can use it as many times as you need.
Does this calculator work offline?
Yes! After the initial page load, the calculator works entirely in your browser and does not require an internet connection.
Can I use keyboard shortcuts?
Absolutely! You can use your keyboard's number keys, operators (+, -, *, /), Enter for equals, and Escape to clear.
What operations does this calculator support?
This calculator supports basic arithmetic operations including addition (+), subtraction (-), multiplication (×), and division (÷). It also supports percentages and decimal numbers.
How do I calculate percentages?
Click the % button after entering your number. For example, to find 20% of 100, enter "100", click "×", enter "20", then click "%".