0
Basic Calculator Online
A basic calculator for everyday arithmetic: addition, subtraction, multiplication, and division.
Buttons
- AC: Clears everything and resets to 0.
- ⌫ (Backspace): Deletes the last digit entered.
- %: Converts the current number to a percentage.
- ÷ × − +: Division, multiplication, subtraction, addition.
- ±: Switches the current number between positive and negative.
- .: Adds a decimal point.
- =: Calculates the result.
- Copy: Copies the displayed result to your clipboard.
Display
The small line at the top right shows the expression you are building. The large number below it shows your current entry or the result.
How to Use
- Enter the first number.
- Choose an operation (÷, ×, −, or +).
- Enter the second number.
- Press = to see the result.
- Press Copy to paste the result elsewhere.
To start a new calculation, press AC.
Examples
- Discount: To find 20% of 2,500, enter 2500 × 20 and press %.
- Negative numbers: Enter 8, press ±, and the display shows −8.
- Correcting a typo: If you type 125 instead of 120, press ⌫ once, then enter 0.
Notes
- Division by zero is not possible and will not return a valid result.
- Use ⌫ to fix a single mistake. Use AC only when you want to start over.
- Copy your result before pressing AC, since clearing removes it.
- For long decimal results, round the copied value as needed for your use.