Try this

With your data starting in A1

=AVERAGE(OFFSET(A$1,(ROW(1:1)-1)*30,,30))

Mike

"dysonsphere" wrote:

I would like to get the average of 30 cells in a column output to a cell in
another column. Then have the next 30 cells averaged in the next cell down.
If I tell excel to get the average 30 cells then copy that to the next cell
down it takes the average of the 30 cells starting from row 2 instead of from
row 31.