Every bet you face at a poker table is a price. The pot offers you a payout; the call is what it costs to see if you get it. Pot odds turn that price into a single number — the minimum share of the time your hand must win for the call to break even — and once you have that number, “should I call?” stops being a feeling and becomes arithmetic.
The calculator below does the conversion instantly, and — if you enter your equity — renders the verdict for you, including the expected value of the decision in dollars.
Pot Odds Calculator
The verdict compares your equity with the break-even threshold for this single decision (chip EV). It ignores future betting — money you may win or lose on later streets shifts the answer toward implied or reverse implied odds.
What went wrong?
How to Use the Calculator
- Pot before the bet ($): the chips already in the middle when your opponent acted — blinds, earlier calls, previous streets. Do not add the bet you are facing here; the calculator handles that separately, which removes the most common entry mistake.
- Opponent’s bet ($): the bet or raise in front of you.
- Your call ($): leave empty to match the bet. Enter a different amount when you are facing a raise after already committing chips — only what it still costs you matters.
- Your equity (%, optional): the chance your hand wins, from the outs chart below or from an equity calculator. With this filled in, the tool compares the two numbers, shows CALL / FOLD / BORDERLINE, and prices the decision in EV terms.
The Formula Behind the Numbers
Two equivalent ways to express the same price:
A $50 call into a $100 pot plus a $50 bet: you pay $50 for a final pot of $200, so you need 50 ÷ 200 = 25.00% — the same answer the 3:1 ratio gives via 1 ÷ 4. The conversion table:
| Ratio offered | Break-even equity | Ratio offered | Break-even equity |
|---|---|---|---|
| 1.5 : 1 | 40.00% | 3 : 1 | 25.00% |
| 2 : 1 | 33.33% | 4 : 1 | 20.00% |
| 2.5 : 1 | 28.57% | 5 : 1 | 16.67% |
Break-Even Equity by Bet Size
In-game you rarely think in ratios — you see “he bet half pot.” This table converts common sizings directly into the equity a caller needs (heads-up, no prior commitment):
| Bet size | Caller needs | Bet size | Caller needs |
|---|---|---|---|
| 1/4 pot | 16.67% | 3/4 pot | 30.00% |
| 1/3 pot | 20.00% | Full pot | 33.33% |
| 1/2 pot | 25.00% | 1.5× pot | 37.50% |
| 2/3 pot | 28.57% | 2× pot | 40.00% |
Memorize three anchors — half pot 25%, two-thirds 28.57%, full pot 33.33% — and most live decisions no longer need a calculator at all.
From Outs to Equity
The other half of the decision is your own winning chance. Count your outs — the unseen cards that complete your hand — and read the exact percentage:
| Outs | Typical draw | Flop → Turn | Turn → River | Flop → River (both cards) |
|---|---|---|---|---|
| 2 | Pocket pair to a set | 4.26% | 4.35% | 8.42% |
| 4 | Gutshot straight draw | 8.51% | 8.70% | 16.47% |
| 6 | Two overcards | 12.77% | 13.04% | 24.14% |
| 8 | Open-ended straight draw | 17.02% | 17.39% | 31.45% |
| 9 | Flush draw | 19.15% | 19.57% | 34.97% |
| 12 | Flush draw + gutshot | 25.53% | 26.09% | 44.96% |
| 15 | Flush draw + open-ender | 31.91% | 32.61% | 54.12% |
The classic Rule of 4 and 2 approximates this: outs × 4 on the flop, outs × 2 on the turn. It is close (9 outs × 4 = 36% vs the exact 34.97%) — but the ×4 version assumes you will see both remaining cards without paying again. Facing a bet on the flop with another bet likely on the turn, the honest per-street number is the ×2 column.
Worked Examples
Example 1: The flush draw that folds
Turn, you hold two hearts with two on board. The pot is $100, your opponent bets $50. The price: $50 into a final pot of $200 → you need 25.00%. Your nine outs hit the river 19.57% of the time. 19.57% < 25.00% — the call loses money on its own terms, roughly −$10.87 per decision in EV. Fold, unless future winnings justify it (next section).
Example 2: The same draw that calls
Flop this time, and your opponent moves all-in for $100 into a $100 pot. Now there is no future street to pay for: you see both cards. Price: $100 into $300 → 33.33% needed. A flush draw arriving by the river is 34.97%. Thin, but profitable — and this pair of examples is the whole discipline in miniature: identical draw, opposite verdicts, because the price changed.
Example 3: Facing a raise with chips behind
You bet $60 into $90, and your opponent raises to $180. Your call is $120 into a pot that now holds $90 + $60 + $180 = $330. Required: 120 ÷ 450 = 26.67%. Note what went into the “call” field — only the additional $120, not your original bet, which already belongs to the pot.
When the Immediate Price Isn’t the Whole Story
This tool prices a single decision against the chips already visible. Two forces bend that answer. Implied odds: if hitting your draw wins extra bets on later streets, a call that fails the immediate test can still profit — the flush draw in Example 1 becomes correct if a $60+ river bet reliably follows. Reverse implied odds: if hitting your draw can still leave you second-best (a low flush against a higher one), your effective equity is lower than the outs chart claims. The Implied Odds Calculator quantifies the first effect; discounting dirty outs handles the second.
Common Mistakes
- Counting tainted outs at full value. A heart that also pairs the board against a probable set is not a clean out. Discount outs that complete your hand and a better one simultaneously.
- Using outs × 4 while facing per-street bets. The 4× shortcut is an all-in number. If another bet is coming on the turn, you are paying twice for the equity you counted once.
- Adding your own dead money incorrectly. Chips you committed earlier belong to the pot, not to your cost. Only the amount still in front of you to call goes in the cost column.
- Ignoring players behind. A profitable heads-up price can evaporate if a raise behind you is likely — you may pay more than the number you calculated.
Related Calculators
- Poker Equity Calculator — Exact hand-vs-hand winning chances
- Implied Odds Calculator — Pricing the money you win after you hit
- Push/Fold Chart — Short-stack all-in ranges
- Cash Game Variance Calculator — How much swing correct calls still produce
- ICM Calculator — Tournament chip values, where chip EV and money EV diverge