Try something like this:

=AVERAGE(IF(F5:F10000,F5:F1000))
this is an array formula so enter using Ctrl+Shift+Enter


HTH

Jean-Guy

"sross002" wrote:

how do I Calculate the average of numbers not in a contiguous row or column,
excluding cells that have 0?

(The column starts at F5 but I will continuosly add to the f column, so it
doesn't have an ending column.)

It's a simple worksheet calculating my MPG on my car, so I will keep adding
to it.