Excel: Sum Function
In Excel, the Sum function adds all numbers in a range of cells and returns the result.
The syntax for the Sum function is:
Sum( number1, number2, ... number_n )
or
Sum ( cell1:cell2 )
Applies To:
- Excel 2007, Excel 2003, Excel XP, Excel 2000
For example:
Let's take a look at an example:

Based on the Excel spreadsheet above:
=Sum(B2, B3) would return 17.7 =Sum(B3, B5, 45) would return 57.6 =Sum(B2:B6) would return 231.2
