If you have a polynomial fit see my webpage
www.stfx.ca/people/bliengme/ExcelTips on the use of LINEST

If your fit is something else, please reply and we can show how to use
LINEST in many circumstances

best wishes

--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"Dawn" wrote in message
...
how do i calcualte a non linear line equation using excel? i have the
graph
with the non loinear line on i just need to put the equation on.