Why can't you just make your SUM() formula "oversized", so that it will
include cells that will *eventually* be populated with numbers?

With your formula in A10:
=SUM(A11:A10000)

To do what you're asking, with your Sum formula in A10,you could try a
formula such as this:

=SUM(INDIRECT("A11:"&ADDRESS(MATCH(9.9999999999999 9E+307,A11:A65000)+10,1)))
--

HTH,

RD
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Please keep all correspondence within the Group, so all may benefit!
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"JasonUT" wrote in message
...

Thanks Aladin,

Unfortunately, the function didn't work as I had hoped. It sounds like
F1 is the bottom cell and it would add all the cells above it.
Unfortunately, the bottom cells location varies everyday and I don't
always know it.

An Example of my situation would be:

=SUM(function) <-Cell X (Always known)
a
b
c
d
e