Is Jack a 10 in Blackjack?

In blackjack, Jack is not considered a 10. This is because there are only four 10s in a deck of cards (10, J, Q, K), and since Jack is not one of them, it cannot be a 10. However, some people may refer to Jack as a 10 in blackjack if they are using a point system where all of the cards are worth their face value (i.e.

PRO TIP:Jack is a 10 in Blackjack if the card is either a Jack, Queen, or King. In this case, the value of the card is 10.

Ace=1, 2=2, 3=3, etc.), in which case Jack would be worth 10 points.