Addition Calculator

Easily calculate the sum of multiple numbers. Enter numbers separated by commas.

Enter numbers to add (comma-separated):

Separate each number with a comma. Maximum value per number is 1,000,000.

Result:

Visual Breakdown:

About Addition

Addition is one of the basic operations of arithmetic. In its simplest form, addition combines two quantities into a single quantity, known as the sum. For example, adding 5 and 3 gives the sum 8, written as 5 + 3 = 8.

Addition is commutative, meaning the order of numbers does not change the result (e.g., 3 + 5 = 5 + 3). It is also associative, meaning when adding three or more numbers, the grouping of the numbers does not matter (e.g., (2 + 3) + 4 = 2 + (3 + 4)).

This tool helps you quickly add multiple numbers together, simplifying calculations for everyday math problems, educational purposes, or quick checks.