Preflop Equity Calculator
Calculate preflop hand equity against opponent ranges in Texas Hold'em
About this calculator
The Preflop Equity Calculator is an essential tool for Texas Hold'em players that calculates the winning probability of your hole cards against opponent hand ranges before the flop. By inputting your specific hand and estimating your opponent's likely range of hands, you can make mathematically informed decisions about whether to fold, call, or raise. This calculator helps eliminate guesswork from preflop play, allowing you to maximize expected value and improve your overall poker strategy through data-driven decision making.
How to use
Select your hole cards from the dropdown menus, then define your opponent's hand range by choosing specific hands or percentage ranges they might play. Click calculate to see your equity percentage against their range. Use this information to determine if calling, raising, or folding is the most profitable action based on pot odds.
Frequently asked questions
What is preflop equity in poker?
Preflop equity is the percentage chance your hole cards have of winning against an opponent's range of possible hands before any community cards are dealt.
How do I estimate my opponent's range?
Consider their position, playing style, and betting action. Tight players have narrower ranges while loose players have wider ranges of hands they'll play.
When should I use this calculator?
Use it during study sessions to analyze hand histories, practice range estimation, or learn proper preflop strategy for different positions and situations.