As you can see, the tape will most likely raise a little bit at the back. If you are wearing a bra, the fullest part of your bust may be lower in front, and the angle towards the back more pronounced.
This method measures you at the absolute fullest part of your body. This is the most fabric that you will get in your bodice. And remember, there is no ease. What you measure is what you get. Commonly today, a person will stand in front to measure. But doing so allows the back of the tape to drop too low, or to fall about bra band level. It is my experience that allowing the tape to fall in the back will make your measurement a full 2″ less than what it should be. I get complaints all the time about mock-ups and bodices that are 2″ too small, or reviews saying the patterns runs small, etc. Well, this is where it all most likely went wrong, not taking a proper bust measurement at the very beginning.
Up next, the back width and other measures.
\Thank you, Sandy and Tonya for modeling for me!\