Free Pot Odds Calculator for Poker
Enter the pot and the bet you are facing to get the exact equity you need to call, the price expressed as a ratio, and how implied odds change the answer. Free, instant, no signup.
How pot odds work
Pot odds answer one question: how often do you have to win for this call to break even? The formula is the amount you must call divided by the size of the pot after your call goes in. If the pot holds $150 and you face a $50 bet, calling makes the pot $200, so your price is 50 / 200 = 25%. Win more than a quarter of the time and calling makes money; win less and it loses money.
The same number is often quoted as a ratio. Being laid 150-to-50 reduces to 3:1, and a 3:1 price needs 1 / (3 + 1) = 25% equity. Percentages and ratios are interchangeable — the calculator shows both because different players think in different units.
The single most common error is leaving the bet you face out of the pot. That money is already in the middle and you collect it when you win, so it counts. Using the pre-bet pot in the example above would tell you that you need 33% instead of 25% — a wide enough gap to turn a clearly profitable call into a fold. This calculator takes the pot and the bet as separate inputs and adds them for you, so the mistake is not available to make.
The bet sizes worth memorising
Because the price depends only on bet size relative to the pot, six numbers cover nearly every decision you will face:
- Quarter pot — lays 5:1, needs 16.7% equity.
- Third pot — lays 4:1, needs 20%.
- Half pot — lays 3:1, needs 25%.
- Two-thirds pot — needs 28.6%.
- Pot-sized — lays 2:1, needs 33.3%.
- Two times pot — needs 40%.
These hold at every stake, because the ratio is what matters, not the currency amount.
Implied and reverse implied odds
Raw pot odds only count the chips already in the middle. Implied odds add the money you expect to win on later streets when your draw gets there, which lowers the equity you need right now. Calling $50 into $150 needs 25%; if you will extract another $200 when you hit, the requirement drops to 50 / 400 = 12.5%. Only count money you will realistically collect — a scare card that kills the action, a short opponent stack, or a player who never pays off means those implied odds are imaginary.
Reverse implied odds are the mirror image: money you expect to lose when you improve and are still behind. Second-best flushes and idiot-end straights are the classic cases, where hitting your card costs you more than missing would have. When reverse implied odds are live, treat the calculator's number as a floor and demand extra equity on top.
Pot odds give you the threshold, not the decision — you still need your actual equity to compare against it. Count outs with the poker odds calculator, or get exact numbers against a hand or range with the equity calculator. In tournaments, check the spot against the ICM calculator too: near a pay jump, a chip-EV-correct call can still be a real-money mistake.