Pot Odds in Poker: How to Calculate and Use Them

What Are Pot Odds?

Pot odds are the ratio of the current pot to the cost of a call — the return you're being offered.

Example: Pot = £100. Opponent bets £50. Total pot = £150. You pay £50 to win £150.

Pot odds as percentage: 50 ÷ (50 + 150) = 25%

You need to win at least 25% of the time for the call to be profitable long-term.

Comparing Pot Odds to Your Equity

Pot odds only matter when compared to your equity — the probability your hand wins at showdown.

Equity > pot odds % needed = Profitable call
Equity < pot odds % needed = Fold

Example: Flush draw on the flop. Pot £100, bet £50, you need 25% equity. Flush draw has ~35% equity to hit by river. 35% > 25% = profitable call.

The Rule of 2 and 4

Calculating exact equity mid-hand is impractical. Use this shortcut:

After the flop (two cards to come): Outs × 4 = approximate equity %
After the turn (one card to come): Outs × 2 = approximate equity %

Examples:
• Flush draw (9 outs) on flop: 9 × 4 = 36%
• Same draw on turn: 9 × 2 = 18%
• Gutshot (4 outs) on flop: 4 × 4 = 16%

Accurate to within 1–2% — fast enough to use at the table.

Implied Odds: When Current Pot Odds Aren't Enough

Implied odds account for additional money you expect to win on later streets if you hit your draw. Sometimes a call that doesn't justify on current pot odds is still profitable.

Implied odds are higher when:
• Opponent has a big stack and strong hand (likely to pay off when you hit)
• Your draw is well-disguised (they won't see it coming)
• You are in position

Implied odds are lower when:
• Your draw is obvious
• Opponent is short-stacked
• You are out of position

Reverse Implied Odds: When Winning Isn't Enough

Reverse implied odds occur when you hit your draw but still lose — typically when you make a non-nut hand and your opponent has a better version.

Example: You hold a small flush draw. You hit the flush but your opponent has the Ace-high flush. You lose a large pot when you 'make your hand.'

Avoid drawing to non-nut hands against aggressive opponents. Always prefer drawing to the best possible version of the hand — the nuts.

For pot odds applied to live poker scenarios with worked hand examples, see Live Casino Guides' live poker pot odds guide.