Question: what is the difference between ff and g cup?
Answer: For a 30FF and a 30G the difference is an inch bigger in bust. For 30FF and 28G is about 2 inches smaller in ribcage. ... FF in each band is 8 inches bigger than the ribcage, where as G is 9. So even though a 26G is smaller in bust volume than a 30FF, the 26G may have a bigger looking bust because of her smaller frame.