round chart using excel

[elemar]

hello !
i want to create a chart where one axis will be degrees and the other a certain measurement anyway. i want this chart to look round (not a pie chart). how can i achieve this ?
ps i want something like the attached photo. thank youu :D

 

[mole999]

I'm thinking that would be a plot you would cross at zero, equal offsets all ways and maybe superimpose a circular image as a water mark in the background

 

[Jon Peltier]

I wrote a tutorial this week which may help, it's called Polar Plot in Excel.