Basic Math Calculator

Add, subtract, multiply, or divide two numbers.

  • Free to use
  • Accurate results
  • No registration required
  • Works on all devices
Enter two numbers and choose an operation to get the result instantly.

Your result

20

Result

AI explanation

Formula

Result = first number (operation) second number

Worked example

12 + 8

Worked example: 12 + 8
FieldValue
First number12
Second number8
Operationadd
Result20

Assumptions

  • Division by zero is not allowed and shows an error instead of an undefined result.

Frequently asked questions

What operations does this support?

Addition, subtraction, multiplication, and division of two numbers.

Can I use decimal numbers?

Yes — both numbers accept decimals, not just whole numbers.

What happens if I divide by zero?

The calculator shows an error, since division by zero is undefined.

Related calculators

Report a calculation issue