The cup size is the difference. The band should be the same (as it would 36") but the cup would be larger.
The equivalent bra size to a 34DDD is 36DD, not 36D or 36F. When you go up a band size (from 34 to 36), you typically need to go down a cup size to maintain the same volume, which means a 34DDD would be equivalent to a 36DD.
My guess is 36D or 36DD. Been into some 36C and those look bigger!
What's the next bra size after 36d
Her bra size is 36D.
her bra size is 36D
Her bra size is 36D
36DD
36d
36d
36D
36d
36D