Have just done my measurements but one website says they make me a 32c, the other say 36a. Personally I don't think I'm either. My boobs are different sizes, noticeably to look at. My measurement under boobs is 32", one boob measures 37" and the other 35". Any ideas what size they are? Have always worn a 34d but it doesn't look right.
The best way to measure is to do your underbust tightly, then (braless), bend over so your body is at 90' to your legs, then measure round the largest part of your boobs. You'll need to fit the larger boob cupwise, and then add a little pad to the other.
I guess you'll be at least a 32 E, but report back with measuring that way - its changed my bra size massively thanks to MN, and I look soooo much better for it.