There is not a standard formula for this. Someone may know of one available
as a add in.

Depending on the accuracy desired this can get fairly involved

This reference give a fairly good sysopsis of the issue, and does have a
couple for simplier formulas that will get you close.

http://mathforum.org/dr.math/faq/for...umference.html
(Sorry - I can't seem to get hyperlinking to work from my reader so jusy
copy and paste to a web browser)
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If this helps, please remember to click yes.


"M" wrote:

Is there a formula to Calculate the Circumference of an ellipse in excel?