Quick start
- Enter the first number using the on-screen keypad or your keyboard.
- Choose an operation: add, subtract, multiply, or divide.
- Enter the next number and press equals or Enter.
- Use Copy result if you want to paste the answer somewhere else.
- Check the Calculation History panel if you need to compare recent totals.
What each button does
AC clears the calculator and starts over.
DEL removes the last digit you entered.
% turns the current number into a percentage value. For plus or minus, it uses the first number as the base.
+/- switches the current number between positive and negative.
x multiplies two numbers.
/ divides one number by another.
Keyboard shortcuts
Examples from the calculator
60.75
64
42
Using history and copy
After a calculation finishes, the result is added to the history panel. This is useful when you are comparing totals, checking several discounts, or working through a few quick numbers in a row.
The Copy result button copies the current display value to your clipboard. The Clear history button clears only the visible history list; it does not change the current calculator result.
Privacy note
The calculator runs in your browser. The recent calculation history is kept only on the page during the current session and is not sent to a server by this tool.