sidewall bulge measurement ?

Hey folks ! I was wondering if anyone knows how much the sidewall bulges from the rim of a 15"x10" with 325/50r15s on them ? I am looking into tires and leaning towards the M/T 325/50r15 but I don't know how much they bulge from the rim . Maybe if someone had a free minute to get an accurate measurement of the distance from the edge of the rim to the outside of the bulge using a straight edge across the tire that would be awesome !!! I'm sure there are others who would be interested in knowing as well !
Thank you in advance for your time and your help !!!