Emmett cullen or Emmett McCarty was changed on 1935. Rosalie found him being mauled by a bear. He was changed by Carlisle. He's physically 20 years old. He was born on 1915.
20 he was born on when 1915.
When Rosalie found him being mauled by a bear she saved him,carried him to Carlisle who changed him in 1935.
So physically he is 20... :)