Poker Outs: The Complete Reference Guide
Master the rule of 2 and 4 — and know instantly how likely any draw is to complete.
Updated May 6, 2026
What Are Outs?
An out is any card remaining in the deck that improves your hand to — most importantly — likely the best hand. That qualifier is critical. Counting a card as an out only because it makes your hand stronger is a common and costly mistake.
Suppose you hold A♠ 9♠ and the board reads K♠ 7♠ 2♣. You have a flush draw, so at first glance you have 9 outs. But if your opponent holds K♥ K♣, they already have a set. If a spade comes and pairs the board simultaneously, that spade might give you a flush while giving them a full house — your "out" is no longer an out at all.
True outs are cards that give you the best hand, not just a better hand. Keep this distinction at the front of your mind every time you count outs at the table.
Common Draws and Their Outs
The table below lists the most common drawing situations you will encounter and their standard out counts. These numbers assume clean outs — cards that give you the best hand without helping your opponent.
| Draw Type | Outs |
|---|---|
| Open-ended straight draw | 8 |
| Flush draw | 9 |
| Gutshot straight draw | 4 |
| Two overcards | 6 |
| One overcard | 3 |
| Set (flopped) — to full house or quads | 7 |
| Flush draw + pair (combo) | 14 |
| Flush draw + open-ended straight (monster combo) | 15 |
Tip: Combo draws (flush + straight) are the most powerful drawing hands in poker — they can have over 50% equity against a made hand.
The Rule of 2 and 4
On the flop (two cards to come): Outs × 4 ≈ Equity %
On the turn (one card to come): Outs × 2 ≈ Equity %
The rule of 2 and 4 is the fastest way to estimate your equity at the table without a calculator. Multiply your outs by 4 when you are on the flop with two cards still to come, and by 2 when you are on the turn with one card left. The result is a close approximation of your chance of completing your draw by the end of the hand.
The approximation is most accurate in the middle of the out range (4–12 outs). With very high out counts (15+), the rule slightly overestimates equity, so shave a few percent off mentally.
Worked Examples
Flush draw on the flop
9 outs × 4 = 36%
(actual equity: ~35%)
Flush draw on the turn
9 outs × 2 = 18%
(actual equity: ~19.6%)
Open-ended straight draw on the flop
8 outs × 4 = 32%
(actual equity: ~31.5%)
Outs Table: Flop and Turn Equity
Use this table as your reference sheet. The percentages shown are the approximate probability of completing your draw by the river (flop) or on the next card (turn). Bookmark this page and drill the numbers until they become automatic.
| Outs | Flop Equity (two cards to come) | Turn Equity (one card to come) |
|---|---|---|
| 1 | 4% | 2% |
| 2 | 8% | 4% |
| 3 | 12% | 7% |
| 4 | 16% | 9% |
| 5 | 20% | 11% |
| 6 | 24% | 13% |
| 7 | 28% | 15% |
| 8 | 31% | 17% |
| 9 | 35% | 20% |
| 10 | 38% | 22% |
| 11 | 42% | 24% |
| 12 | 45% | 26% |
| 13 | 49% | 28% |
| 14 | 52% | 30% |
| 15 | 54% | 33% |
Highlighted rows (8 and 9 outs) are the most common drawing situations: open-ended straight draws and flush draws.
Discount Your Outs
Not every out is a clean out. A tainted out (sometimes called a dirty out) is a card that appears to complete your draw but simultaneously gives your opponent a better hand. These outs should be reduced or removed from your count.
Classic tainted out scenarios:
- You have a flush draw. A flush card arrives — but it also pairs the board, completing a full house for an opponent who was betting a set.
- You have an open-ended straight draw. One of your straight cards also puts three of a suit on the board, completing a flush for an opponent on a flush draw.
- You hold two overcards. The board pairs — your overcard may now be counterfeited by an opponent's two-pair or trips.
As a practical rule: when you suspect one or more of your outs may be tainted, reduce your out count by 1 to 2 outs before applying the rule of 2 and 4. If the danger is severe — for example, a paired board against an aggressive opponent who likely holds a set — you may want to reduce by more or reconsider the hand entirely.
Discounting outs is a judgment call that improves with experience. When you are uncertain, err on the conservative side. Overestimating your outs leads to calls that bleed chips over time.
Combining Outs: Combo Draws
A combo draw occurs when your hand has multiple ways to improve at once. These are the most powerful drawing hands in poker and can often be played aggressively — even as semibluffs — because of their enormous equity.
Flush draw + open-ended straight draw
Naively, 9 flush outs + 8 straight outs = 17. But two of the straight cards are also flush cards (they complete both draws). You cannot count those twice. Subtract the overlap: 15 outs.
Flush draw + pair
9 flush outs + 5 outs to make two pair or trips (depending on whether you hold a pocket pair or a paired board card). Some overlap may exist — estimate conservatively at 14 outs.
Key principle when combining outs:
- Always subtract cards that are counted in two different draws (overlapping outs).
- Always apply the tainted-out discount on top of the combined count.
- A 15-out combo draw on the flop has more equity than many made hands — it can be played as a raise or re-raise profitably.
Understanding combo draws is one of the clearest edges an intermediate player can develop. Most recreational players drastically underestimate how strong a flush draw + straight draw is. Recognizing when you hold one — and playing it aggressively — is a significant source of profit.
Apply Your Out Knowledge
Knowing your outs is only half the equation. Combine it with pot odds and equity charts to make profitable decisions every hand.
This article explains poker outs — cards remaining in the deck that complete a drawing hand to likely the best hand. It covers common draw types and their out counts, the rule of 2 and 4 for estimating equity, a comprehensive outs-to-equity reference table for flop and turn, how to discount tainted outs, and how to count outs correctly for combo draws like flush plus straight draws.