Lesson overview
Poker Pot Odds: Formula, Percentages and Examples
The 2-second calculation that prints money
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How do you calculate pot odds?
Divide the amount you must call by the total pot after your call. Multiply by 100 to get the break-even equity percentage. The pot before your call must include the opponent’s bet. This calculation gives the price of calling; it does not tell you how often your hand wins against the opponent’s range.
Worked example: calling a half-pot bet
The pot is 100 before the opponent bets. They bet 50, so the pot now holds 150 and you must call 50. After you call, the final pot is 100 + 50 + 50 = 200.
Required equity: 50 / 200 = 25%. The pot offers 150:50, or 3:1. If this call ends the betting, there are no fees and your equity is 30%, its expected value is 0.30 × 200 − 50 = +10. Your 50-chip call is included in the final pot and subtracted once as your cost.
Common bet sizes and required equity
For a heads-up call against a bet into a pot of 100, ignoring fees:
| Opponent bets | Your call | Final pot | Break-even equity |
|---|---|---|---|
| 25 (quarter pot) | 25 | 150 | 16.7% |
| 50 (half pot) | 50 | 200 | 25% |
| 100 (pot) | 100 | 300 | 33.3% |
| 200 (double pot) | 200 | 500 | 40% |
A bigger bet offers a worse price: you need more equity to call.
Why enough draw odds do not always make a call profitable
On the river, or when an all-in guarantees the remaining cards with no further bets, comparing equity with this price is straightforward. With betting still to come, a flop call may buy only one card. Do not compare a two-card draw probability with the price of seeing just the turn.
Implied odds consider money you might win later; reverse implied odds consider money you might lose after making a second-best hand. Rake reduces the money available to win. Tournament payout pressure can also make chip break-even equity an incomplete guide. A draw-completion probability is not automatically your equity against a range.
What you’ll learn
- The 'fraction trick' that eliminates all pot odds math
- A cheat sheet you'll memorize in 60 seconds
- Why you'll never need a calculator at the table again
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