I assume you meant "005 rather than 365", and not "005 rather than 345"?

Try =MOD(A1+B1,360)
--
David Biddulph

"Stephen" wrote in message
...
How can I format cells so that if I add say 10 degrees to a compass value
of
355, Excel will return 005 rather than 345; in other words I want to work
in
base 360.