Pot Odds in Poker: What They Are and How to Use Them
Updated 12 September 2026Pot odds are the one piece of poker arithmetic that pays for itself immediately. Two numbers, one division, and a large share of your calling and folding mistakes disappear.
Pot odds are the price you are being offered to call. Divide the amount you have to call by the total pot after you call, and you get the minimum share of the time you need to win for the call to break even. Pot is 100, opponent bets 50: you pay 50 into a 200 pot, so you need to win 25% of the time. If your hand wins more often than that, call. If less, fold.
The definition
Every time someone bets into you, you are being offered a bet of your own: pay this much, win that much. Pot odds just put a number on that offer. They are usually written as a percentage, because the percentage is directly comparable to the other number you need — your equity, meaning the share of the pot your hand is worth, or how often it wins if the hand is played out.
The consequence first, because it is the whole point: pot odds turn calling and folding from a feeling into a comparison. You are not asking “do I like my hand?”. You are asking whether one percentage is bigger than another. When your equity beats the percentage the pot odds demand, calling makes money over time. When it does not, folding does.
You will also see pot odds written as a ratio, like 3-to-1. Ratios are fine, but percentages save you a conversion step, so this page uses percentages throughout.
The formula
In words: what you pay, divided by what the pot will be once you have paid it.
Two things trip people up. First, the denominator includes your own call — you are paying into the pot you might win, so your money is part of it. Second, “pot before your call” already includes your opponent’s bet. Get those two right and the formula never fails.
Worked example 1: a normal flop call
You are in a 6-max cash game with 100 big blind stacks. Everything below is in big blinds.
- The pot on the flop is 6.
- Your opponent bets 4.
- The pot before your call is therefore 6 + 4 = 10.
- You would be calling 4, making the final pot 10 + 4 = 14.
Required equity = 4 ÷ 14 = 28.6%. So you need a hand that wins at least 28.6% of the time against the range your opponent is betting. A flush draw with two cards to come is worth roughly 35% — comfortably a call. A single overcard with no draw is worth far less — a fold.
Worked example 2: a big river bet
Same game, the river. The pot is 20 and your opponent bets 20 — a pot-sized bet.
- Pot before your call: 20 + 20 = 40.
- Your call: 20. Final pot: 60.
Required equity = 20 ÷ 60 = 33.3%. On the river there are no cards to come, so equity is simply how often your hand is the best one. You need to be ahead one time in three. That means you do not need a strong hand to call a pot-sized bet — you need a hand that beats a third of what your opponent would bet here, bluffs included. This is why folding every marginal hand to a big river bet is a leak: the price is usually better than it feels.
Notice the pattern. Bigger bets demand more equity; smaller bets demand less. A half-pot bet asks for 25%, a pot-sized bet 33%, a double-pot bet 40%. That is the entire reason bet sizing matters.
Pot odds vs equity: the comparison table
You do not need to do the division at the table for common sizes. Learn this table and you will recognise the price instantly. Call when your equity is above the required number; fold when it is below.
| Bet size (as share of pot) | Pot odds | Equity you need | Example hand that clears it on the flop |
|---|---|---|---|
| One quarter pot | 5-to-1 | 16.7% | Almost any draw, including a gutshot straight draw (~16%) as a close call |
| One third pot | 4-to-1 | 20% | Open-ended straight draw (~31%) clears it easily |
| Half pot | 3-to-1 | 25% | Flush draw (~35%) |
| Two thirds pot | 2.5-to-1 | 28.6% | Flush draw still clears it; a gutshot does not |
| Full pot | 2-to-1 | 33.3% | Flush draw is borderline; top pair is usually fine |
| One and a half pot | 1.33-to-1 | 37.5% | You need a made hand or a very strong draw |
| Double pot | 1-to-1 | 40% | Strong made hands only |
The draw percentages above assume two cards still to come. With one card to come, roughly halve them: a flush draw is about 19% on the turn, not 35%. For how to work those numbers out yourself, see how to calculate poker odds, and for the full definition of the other half of the comparison see equity.
Implied odds
Pot odds only count the money on the table right now. But when you call a flop bet with a draw, you are not really playing for the current pot — you are playing for the pot as it will be if you hit. That extra money is your implied odds: pot odds plus what you expect to win on later streets when your hand comes in. Because the real prize is bigger than the visible one, implied odds let you call slightly wider than the raw arithmetic allows.
The size of that allowance depends on two things, and both are judgement rather than arithmetic. How much money is left behind — deep stacks mean a big pot to win later, short stacks mean almost none — and how likely your opponent is to pay you when you hit. A hidden straight gets paid; an obvious flush on a board where the fourth suit arrives often does not. The flip side has a name too: reverse implied odds, the hands that lose you money on later streets because when you improve you are still second best. Calling with a weak flush draw against an opponent who may hold a bigger one is the classic case.
Common mistakes
- Leaving your own call out of the pot. Calling 50 into a pot of 100 is 25%, not 33%. Forgetting to add your call makes every price look worse than it is, and the result is folding too much.
- Comparing pot odds to the wrong equity. Your equity is against the hands your opponent would actually bet in this spot, not against a random hand. Against a range that is almost all strong hands, your 35% flush draw might really be 28%.
- Using two-card equity when only one card is coming. The single most common arithmetic error. On the turn, your draw has one card left, so roughly half the equity you had on the flop.
- Counting implied odds that do not exist. Implied odds need money behind and an opponent willing to pay. With 15 big blinds left, a draw is worth almost exactly its pot odds, no more.
- Treating a correct call that lost as a mistake. A 28% call loses nearly three times in four. The loss is the expected outcome, not evidence against the decision — see expected value.
- Applying pot odds to a spot where raising is better. Pot odds only compare calling with folding. Sometimes your hand is strong enough that calling is the third-best option.
Do it in Zayrion
The gap between knowing the formula and using it under pressure is closed by repetition with feedback. In Zayrion you are dealt a real solver-solved spot from a 6-max cash game, you choose an action, and the app shows you the solver’s answer, your equity in that spot, the hands you beat, and what your choice cost in big blinds.
- See the two numbers side by side: the answer screen gives you your equity, so you can check it against the price the bet was offering before you move on.
- Drill the folds you get wrong: drills are built from your own misses, so if you are folding too often against small bets, that is what you get served.
- Track it as a concept: progress by concept shows whether your calling and folding decisions are improving, separately from the rest of your game.
- Start free: Hand of the Day and the lessons from zero are on the free tier. Elite adds exact frequencies and a strategy grid if you want to see the solver’s whole range.
Educational only. No real-money play. 18+. On Google Play now; iPhone coming soon.
Frequently asked questions
What are pot odds in poker?
Pot odds are the price you are being offered to call. They compare the size of the bet you must pay with the size of the pot you could win. Expressed as a percentage, they tell you the minimum share of the time you need to win the hand for calling to break even.
How do you calculate pot odds?
Divide the call by the total pot after your call. If the pot is 100 and your opponent bets 50, you pay 50 into a pot that will be 200 once you call, so 50 divided by 200 is 25%. You need to win at least 25% of the time for the call to break even.
What is the difference between pot odds and equity?
Pot odds are the price; equity is your share of the pot — how often your hand wins if the hand is played to the end. You compare the two. If your equity is higher than the percentage the pot odds demand, calling makes money. If it is lower, folding does.
Do pot odds work on every street?
The arithmetic does, but what you compare it against changes. On the river there are no more cards, so your equity is simply whether you are ahead. On the flop and turn you also have to account for the money you might win or lose on later streets, which is where implied odds come in.
What are implied odds?
Implied odds are pot odds plus the money you expect to win on later streets when you hit your hand. They let you call slightly wider than raw pot odds allow, because the pot you are really playing for is bigger than the pot on the table right now.
Why does my call lose even when the pot odds were right?
Pot odds tell you whether a decision makes money on average over many repetitions, not what happens once. A call that needs 25% equity will lose three times out of four and still be correct, because the one win pays for the three losses.
Related: expected value · equity · how to calculate poker odds · how to practise poker