You can shorten that to

=SUMPRODUCT(--(Sheet2!A1:A50=A1),--(Sheet2!B1:B50=B1),Sheet2!C1:C50)


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Regards,


Peo Sjoblom


"JNW" wrote in message
...
Try
=sumproduct(--(sheet2!A1:A50=A1),--(sheet2!B1:B50=B1),--(sheet2!C1:C50))

Sheet2 is where the stored distances are.
--
JNW


"quinn111" wrote:

The mileage is just entered into cells, no calculation.
In this example: I have orgin, destination & mileage columns in the same
spreadsheet as the main, just off to the right.

"JNW" wrote:

how is your mileage calculation sheet set up?
--
JNW


"quinn111" wrote:

I have 2 columns (i.e. origin & destination) & I want it to compare
to data
in other part of spreadsheet to fill in miles between origin &
destination.

For example: Chicago to Des Moines. I have Chicago in the origin
column
and Des Moines in the destination column. I have the miles already
calculated for that run in another part of the spreadsheet, so every
time I
fill in the orgin as Chicago & Destination as Des Moines, I want the
correct
miles to fill in the mileage column.