How long do you have to train to be a vet?

In the United States, the initial training for a veterinarian is a minimum of 7 years of college - 3 years of undergraduate and 4 years of vet school. However, a veterinarian is never done learning (continuing to improve is part of the Veterinarian's Oath) and a veterinarian will be some form of training for the majority of his/her career.