Basic Calculator
Add, subtract, multiply, or divide two numbers.
Worth Knowing
The one operation worth pausing on here is division: dividing by zero is undefined rather than infinite, which is why the tool returns no result instead of a number when the second value is zero. It's a small reminder of a rule that trips up spreadsheets and programming languages alike. For chained calculations involving more than two numbers or mixed operations, reach for the scientific calculator, which respects the standard order of operations.
How to Use
- Enter First number into the first field of the Basic Calculator.
- Fill in the rest: Operation, Second number.
- Your result appears instantly as you type — there's no submit button or page reload.