[measurement check] 51f currently wearing a 34E

I took my measurements per the instructions and entered them in the calculator. It suggested a 30G. Ive been measured at Nordstrom and in Paris more than once and currently wear French bras in a size 34DD (G) or DDD (F). A 30” band seems so small!

1. 30.75 inches
2. 30.25
3. 28.0
4. 37.5
5. 41.0
6. 38.0

Thank you for your input!