Math Calculator

Evaluate math expressions with basic operations. Type or use the keypad.

Math Calculator
Type an expression or use the keypad. Supports +, −, ×, ÷, %, and parentheses.

What is This Math Calculator?

This free online math calculator lets you evaluate expressions using basic operations: addition (+), subtraction (−), multiplication (×), division (÷), and modulo (%). You can type an expression like 2+3*4 or use the keypad to build it. Parentheses control order of operations (e.g. (2+3)*4).

How to Use This Math Calculator

  1. Type your expression in the input field, or use the keypad to add numbers and operators.
  2. Use parentheses to group operations, e.g. (10-2)/4.
  3. Press Enter or click the = button to evaluate. The result appears below the input.
  4. Use C to clear and ⌫ to delete the last character.

Operators

  • + − × ÷ — Addition, subtraction, multiplication, division
  • % — Modulo (remainder), e.g. 10 % 3 = 1
  • ( ) — Parentheses for grouping

Frequently Asked Questions

What operations are supported?

The calculator supports addition (+), subtraction (−), multiplication (×), division (÷), and modulo (%). You can use parentheses to control the order of operations. Decimals are supported (e.g. 3.14 * 2).

What is the order of operations?

Multiplication, division, and modulo are evaluated before addition and subtraction. Parentheses are evaluated first. For example, 2+3*4 equals 14, and (2+3)*4 equals 20.

What does % (modulo) mean?

Modulo returns the remainder after division. For example, 10 % 3 = 1 because 10 divided by 3 is 3 with a remainder of 1. It is useful for checking divisibility or wrapping values.

Can I type the expression myself?

Yes. You can type expressions directly into the input field (e.g. 2+3*4 or (10-2)/4) or build them using the keypad. Press Enter to evaluate.

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