Basic Calculator
A simple yet powerful calculator for basic arithmetic operations including addition, subtraction, multiplication, and division.
Published by:
isCalculator Editorial Team
Was this calculator helpful?
How to use this tool?
How to Use the Basic Calculator
- Enter the first number in the First Number field. You can use integers or decimals.
- Select an operation from the dropdown:
+(add),−(subtract),×(multiply), or÷(divide). - Enter the second number in the Second Number field.
- Click the Calculate button to see the result.
The result appears in green, along with the formula used. If you enter invalid input (e.g., text) or try to divide by zero, a red error message will show instead.
Note: All numbers are treated as decimal values. No unit conversion is needed—just enter plain numbers.
Previous Results
| Result | Inputs | Date |
|---|
Frequently Asked Questions
It supports addition, subtraction, multiplication, and division.
Yes, you can input decimal numbers.
The calculator will display an error message because division by zero is undefined.
