While her exact bra size has not been stated or posted publicly, the best estimate available for actress Kat Dennings' bra size is 38DD. Other estimates made by fans and celebrity oriented websites are 38D and 38E. Several sites list her measurements as 40-27-34.
Dennings was born with the name Katherine Litwack in Bryn Mawr, Pennsylvania on June 13, 1986. Her height is 5 feet, 3.5 inches and her weight has been estimated to be about 140 pounds.
Kat Dennings is known best for her roles as Marla in The 40 Year Old Virgin, Susan Gardner in Charlie Bartlett, Norah in Nick and Norah's Infinite Playlist, and Max Black in the TV series "2 Broke Girls."