Calculator
A simple browser-based calculator supporting the four basic operations โ addition, subtraction, multiplication, and division. No installation required โ just open the page and start calculating. It's handy for quick checks like totaling up a shopping cart, verifying a manual calculation, or splitting a bill. Everything you type and every result stays in your browser and is never sent anywhere.
How to use
- Click the on-screen number buttons, or type numbers on your keyboard.
- Choose an operator (+, โ, ร, รท) to build your expression.
- Press = (or the Enter key) to see the result.
- Press C to clear the display and start a new calculation.
FAQ
Are my calculations saved?
No. Calculation history is cleared when you reload or close the page, so note down any values you need to keep.
Does it work on mobile?
Yes, it works the same way on any device with a browser โ PC, smartphone, or tablet.
Can I use only the keyboard?
Yes โ number keys plus +, โ, *, /, and Enter all work as standard keyboard shortcuts.
Can it do percentages or square roots?
This tool is a simple four-function calculator. For percentage-based math, try the Percent Calculator tool instead.
What happens if I divide by zero?
Since it's mathematically undefined, the calculator shows an error. Enter a non-zero divisor to continue.