Did you try? Chip's formula works for me with DIV0, VALUE and NUM errors.
So does this more long-winded one =SUM(IF(ISERROR(A1:A10),0,A1:A10))
--
Bernard V Liengme
www.stfx.ca/people/bliengme
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"Rick Rothstein (MVP - VB)" wrote in
message ...
To SUM a range and ignore errors, use the following array formula

=SUM(IF(ISNUMBER(A1:A10),A1:A10))

This will return the SUM of A1:A10, ignoring error values.

Not entirely true... put =0/0 or =SQRT(-1) in one of the cells within the
range.

Rick