An out is a card that improves your hand to the winning one. Counting outs lets you estimate your equity instantly with a simple trick.
Count your outs
| Draw | Outs | Flop equity (×4) | Turn equity (×2) |
|---|---|---|---|
| Flush (4 of a suit) | 9 | ~36% | ~18% |
| Open-ended straight | 8 | ~32% | ~16% |
| Gutshot (inside) | 4 | ~16% | ~8% |
| Two overcards | ~6 | ~24% | ~12% |
| Flush + straight | 15 | ~54% | ~30% |
The rule of 2 and 4
Once you have your outs:
- ×4 on the flop (you have two cards to come, turn and river) → approximate equity from here to the river.
- ×2 on the turn (you have one card to come) → equity of hitting on the river.
EjemploYou hold A♥K♥ and the flop brings two hearts: 9 outs to the flush. On the flop, 9 × 4 = ~36% equity. If you don't hit on the turn, 9 × 2 = ~18%. Compare that number with the pot odds and you'll know whether to call.
✓ Consejo: Watch out for “dirty” outs: if your flush could give someone a higher straight, or your pair might already be behind, discount an out or two. The rule is an estimate, not a dogma.
💡 Clave: Outs × 4 on the flop, × 2 on the turn = your approximate equity. Compare it with the price and decide.