Poker EV Calculator — Expected Value Tool

How to Use This EV Calculator

Expected Value (EV) tells you how much you stand to win or lose on average over many repetitions of the same decision. A positive EV (+EV) play earns money long-term; a negative EV (−EV) play loses money. Here is how to use this tool:

1. Enter the pot size — the total amount already in the pot before your decision.
2. Enter the bet to call — how much your opponent has bet that you need to match.
3. Enter your equity — your estimated chance of winning the hand (use our Equity Calculator to find this).
4. Enter fold equity — how often you expect your opponent to fold to a raise. Set to 0 if you are only considering a call.
5. Set your raise size — the multiplier of the bet (default is 2.5x). For example, if the bet is 50, a 2.5x raise is 125.
6. Click Calculate to see the EV of each option and which action is most profitable.

Understanding the Results

The calculator shows three results: EV of calling, EV of raising, and EV of folding (always 0). A positive number means you profit on average; a negative number means you lose. The action with the highest EV is highlighted as the recommended play.

For example, if the pot is 100, your opponent bets 50, and you have 40% equity, the EV of calling is: (0.40 × 150) − (0.60 × 50) = 60 − 30 = +30. Calling is profitable because you gain more when you win than you lose when you miss.

Why Expected Value Matters in Poker

Every poker decision — calling, raising, folding, bluffing — has an expected value. Winning players consistently choose the highest-EV option, even when any single hand might not go their way. Over thousands of hands, these small edges compound into significant profits.

EV and Pot Odds

EV is closely linked to pot odds. When you need to call a bet, pot odds tell you the break-even equity threshold. If your equity exceeds that threshold, calling has positive EV. This calculator goes further by computing the exact dollar amount you gain or lose, making the math concrete.

The Role of Fold Equity

Fold equity is the probability your opponent folds to aggression. When you raise, you can win the pot immediately (opponent folds) or play for a larger pot (opponent calls). Even with marginal hand equity, high fold equity can make raising the most profitable play — this is the mathematical basis of semi-bluffing.

Limitations

This calculator models a simplified single-street decision. In real poker, multi-street dynamics, implied odds, reverse implied odds, and opponent tendencies all factor in. Use the results as a baseline — then adjust for game-specific factors at the table.