Remember there are 52 cards in total in a deck: For example, when we want to be dealt one specific card: The two numbers we use most often in calculating hand probability are how many cards are in a deck and how many cards we want to be dealt in the game. Everything we cover in this article can be easily understood, allowing you to better understand how to calculate a hand’s probability before the flop. In this article, we will discuss some common probability principles in Texas Hold'em poker games and how they are used.ĭon't worry about the poker math. Have you every felt overwhelmed by the numbers in odds charts? When seeing the winning percentages, probabilities, and various other mathematical probabilities in poker games, have you ever wondered where they come from?