¿Cómo está usted? = How are you? (formal)
The use of usted is optional. You can also just say ¿Cómo está? (How are you?)
Check out some examples below:
Keep in mind that ¿Cómo está usted? is formal. If you're talking to someone the same age as you or younger, you should use ¿Cómo estás? .
Check out our article on the different ways to say you in Spanish for more information.