The odds of busting in Blackjack increase as your hand value gets closer to 21. With a hand value of 12, the chances of busting are around 31%, and they rise progressively as your hand value grows. For example, at 16, the odds of busting are about 61%. At a hand value of 17, they jump to nearly 69%, and beyond that, the risk of busting continues to climb, reaching around 75% for an 18, 80% for a 19, and 83% for a 20. At 21, there’s no risk of busting, as you’ve already hit the maximum value. In general, the higher your hand value, the more likely it is that a hit will result in a bust.