FinanceCalcs
Poker Pot Odds Calculator
Pot odds are the ratio of the pot size to the cost of a call. If your pot odds are better than your hand equity, calling is mathematically correct — regardless of whether you ultimately hit your hand. Enter the pot, the bet, and your outs to get the right answer every time.
Poker is a game of incomplete information played over the long run. Making the mathematically correct decision — even when it loses — is what separates winning players from losing ones.
Poker Pot Odds Calculator
Pot: $0 • Call: $0 • 0 outs
Decision: --
Decision Analysis
Outs Reference Chart
| Draw Type | Outs | Flop Equity | Turn Equity |
|---|
Call vs. Fold EV at Different Pot Sizes
| Pot Size | Pot Odds | Equity | EV of Call | Decision |
|---|
Break-Even Analysis
"The results of any individual hand are irrelevant. The only question that matters is: was the decision correct given the information available?"
— Poker Fundamentals
Pot odds explained
Pot odds are expressed as a percentage: the amount you must call divided by the total pot after your call. If the pot is $100 and your opponent bets $50, you must call $50 to win $150 (pot + bet). Your pot odds are $50/$150 = 33.3%. This means you need at least 33.3% equity to make calling profitable long-term.
Hand equity is calculated using the Rule of 4 and 2. On the flop (2 cards to come), multiply your outs by 4 for an approximate equity percentage. On the turn (1 card to come), multiply by 2. Nine flush draw outs on the flop: 9 × 4 = 36% equity. On the turn: 9 × 2 = 18%.
When equity > pot odds, calling is +EV (correct). When equity < pot odds, folding is correct — unless implied odds (additional money you can win on later streets) close the gap. Implied odds are the reason drawing hands gain value with deeper stacks and loose opponents who will pay off when you hit.
lightbulb Common Outs Reference
| Draw | Outs | Flop % | Turn % |
|---|---|---|---|
| Flush draw | 9 | 36% | 18% |
| Open-ended straight (OESD) | 8 | 32% | 16% |
| Flush + gutshot | 12 | 48% | 24% |
| Flush + OESD | 15 | 54%* | 30% |
| Two overcards | 6 | 24% | 12% |
| Gutshot straight | 4 | 16% | 8% |
| Set to full/quads | 7 | 28% | 14% |
*Rule of 4 overestimates at high out counts. Exact equity slightly lower above 12 outs.
Pot Odds FAQs
What are implied odds?
Implied odds account for money you can win on future streets if you complete your draw. If you need 30% equity to call but only have 18%, but you expect to win an extra $80 when you hit, implied odds may make the call correct. Implied odds are highest with hidden draws (sets, backdoor flushes) against players likely to pay off. They’re lowest with obvious draws (four-to-a-flush on board) against tight players who will fold when you hit.
What is reverse implied odds?
The opposite of implied odds — when completing your draw might still lose you money. Example: calling with a gutshot to an ace-high straight when your opponent might have flopped a higher straight or will fill up with a full house. The calculator shows basic pot odds; reverse implied odds require judgment about opponent ranges and should reduce your effective equity estimate.
Should I ever call with worse than pot odds?
Yes — when implied odds close the gap. If pot odds require 35% equity and you have 20% on the flop, but you’re playing deep stacks and will win a large pot when you hit, the call can be correct. A common rule: for every 1% equity you’re short, you need roughly $X in implied winnings where X depends on the pot size. This calculator shows the required implied winnings to break even.
Terminology
Pot Odds
The ratio of the current pot to the cost of a call, expressed as a percentage. Pot odds = call amount / (pot + call amount). If pot odds exceed your equity, calling is unprofitable long-term (before considering implied odds).
Equity
Your share of the pot based on winning probability. A hand with 36% equity wins 36% of the pot on average over many trials. Equity changes with every card dealt and can be estimated using the Rule of 4 and 2 for drawing hands.
Outs
Cards remaining in the deck that improve your hand to (likely) the best hand. A flush draw has 9 outs (13 suited cards minus 4 already visible). An OESD has 8 outs (4 cards on each end). Count outs conservatively — a card that completes your draw but gives an opponent a better hand shouldn’t be counted as a clean out.
Rule of 4 and 2
A quick approximation for equity: multiply outs × 4 when two cards remain (flop), multiply × 2 when one card remains (turn). 9 outs on the flop ≈ 36%. Slightly overestimates at high out counts (>12); use exact calculations for precision.
Expected Value (EV)
The average outcome of a decision repeated over many trials. A +EV call gains money long-term; a −EV call loses money. Correct poker decisions are always +EV, even when you fold the best hand or lose with the correct call.
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