Rajat Gupta, MD, MS, DNB says:Getting a 250g off of a 34D cup size may result in a 34B plus cup size. This is a rough estimate that 100-150 grams is a 1 cup size depending upon your chest measurements. This means a female whole chest measurements are 24 or 28, 100 grams will be 1 cup size. But those whose circumference is...