Basic Calculator
Simple online calculator for everyday arithmetic: add, subtract, multiply, divide.
Related tools
How to use
Click the number and operator buttons to build your calculation, then press = to see the result. You can also use your keyboard: number keys, +, -, *, /, and Enter. Press C to clear.
Frequently Asked Questions
Can I use my keyboard with this calculator?
Yes. You can use the number keys, operators (+, -, *, /), Enter for equals, and Backspace or C to clear.
What is the order of operations?
The order of operations is: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right). Often remembered as PEMDAS or BODMAS.
What is the difference between this and the scientific calculator?
The basic calculator handles everyday arithmetic. The scientific calculator adds trigonometry, logarithms, powers, roots, and other advanced functions.