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Poker Outs Chart — Printable Reference
riverodds.app · Outs to equity · Rule of 4 and 2
| Outs | Turn | River | Combined | Common Scenario |
|---|---|---|---|---|
| 1 | 2.1% | 2.2% | 4.3% | 1-outer (quads vs higher quads) |
| 2 | 4.3% | 4.4% | 8.4% | Pocket pair → set (2 cards left); set vs higher set |
| 3 | 6.4% | 6.5% | 12.5% | Unpaired hand → pair (3 cards of either rank) |
| 4 | 8.5% | 8.7% | 16.5% | Gutshot straight draw |
| 5 | 10.6% | 10.9% | 20.4% | Gutshot + 1 overcard pair out |
| 6 | 12.8% | 13.0% | 24.1% | Two overcards |
| 7 | 14.9% | 15.2% | 27.8% | Two pair → full house |
| 8 | 17.0% | 17.4% | 31.5% | Open-ended straight draw (OESD) |
| 9 | 19.1% | 19.6% | 35.0% | Flush draw |
| 10 | 21.3% | 21.7% | 38.4% | Flush draw + 1 over OR OESD + 2 outs |
| 11 | 23.4% | 23.9% | 41.7% | Flush draw + gutshot |
| 12 | 25.5% | 26.1% | 45.0% | Flush draw + gutshot + 1 over |
| 13 | 27.7% | 28.3% | 48.1% | Pair + flush draw |
| 14 | 29.8% | 30.4% | 51.2% | Combo draw + 2 outs |
| 15 | 31.9% | 32.6% | 54.1% | Flush draw + OESD (combo draw — favorite!) |
| 17 | 36.2% | 37.0% | 59.8% | Wrap straight draw (PLO) + flush |
| 20 | 42.6% | 43.5% | 67.5% | Very rare; full wrap + flush |
| 21 | 44.7% | 45.7% | 69.9% | Maximum playable outs scenario |
Rule of 4: Outs × 4 = combined equity flop→river (within 1-2% accuracy). Rule of 2: Outs × 2 = single-street equity. Discount overlapping outs at 10+ for accuracy.
Frequently Asked Questions
What is an out in poker?
An 'out' is a card that improves your hand to a likely winner. A flush draw has 9 outs (cards of your suit remaining). An OESD has 8. A gutshot has 4. Count outs after the flop to estimate your equity using the Rule of 4 and 2.
What is the Rule of 4 and 2?
Quick mental math for estimating equity from outs. Outs × 4 = equity % flop-to-river (2 cards to come). Outs × 2 = equity % turn-to-river (1 card to come). Example: 9-out flush draw = 9 × 4 = 36% by river (exact: 35%).
How accurate is the Rule of 4 and 2?
Very accurate for 1-9 outs (within 1-2% of exact). For 10+ outs, the rule slightly overestimates equity due to overlapping cards. For exact equity, use a calculator like RiverOdds. For real-time decisions, the rule is sufficient.
How many outs does a flush draw have?
A flush draw has 9 outs — 13 cards of each suit minus 2 in your hand and 2 on the board (assuming 4 of your suit visible). 4 × 4 = 36% by river (exact 35%). Half-pot bet needs 25% to call — flush draw clears easily.
How many outs does an open-ended straight draw have?
An OESD has 8 outs — two ranks (one at each end) complete the straight. Hits 31.5% from flop to river. The standard 'good draw' equity benchmark.