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You can use the following simple formula to calculate the sum of values by group in an Excel spreadsheet:
=SUMIF(group_range, "group name", sum_range)
The following example shows how to use this formula in practice.
Example: Sum by Group in Excel
Suppose we have the following dataset that shows the total points scored by 15 different basketball players:
Now suppose we’d like to find the sum of the points scored, grouped by team.
To do so, we can use the =UNIQUE() function to first create a list of the unique teams. We’ll type the following formula into cell F2:
=UNIQUE(B2:B16)
Once we press enter, a list of unique team names will be displayed:
Next, we can use the =SUMIF() function to find the sum of points scored by players on each team.
We’ll type in the following formula into cell G2:
=SUMIF(B2:B16, F2, C2:C16)
We’ll then copy and paste this formula into the remaining cells in column G:
Column F displays each of the unique teams and column G displays the sum of the points scored by each team.