A very handy method to calculate your outs is the "4 and 2 rule"
On the flop count the number of cards left in the deck that will improve yourhand (the outs) and multiply by 4. This is the percentage of hitting your winning
hand by the river (last card dealt)
On the turn count your outs and multiply by 2 and this gives you the percentage of
you hitting your winning hand by the river.
This chart shows the chances of hitting your hand after the flop or the turn. The
more outs you have the better your chances of hitting.
| Post Flop | Post Turn | |||||||||||||
| Outs | Rule of 4 | Exact % | Rule of 2 | Exact % | ||||||||||
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | 4% 8% 12% 16% 20% 24% 28% 32% 36% 40% 44% 48% 52% 56% 60% 64% 68% | 4.4% 8.8% 13.0% 17.2% 21.2% 25.2% 29.0% 32.7% 36.4% 39.9% 43.3% 46.7% 49.9% 53.0% 56.1% 59.0% 61.8% | 2% 4% 6% 8% 10% 12% 14% 16% 18% 20% 22% 24% 26% 28% 30% 32% 34% | 2.3% 4.5% 6.8% 9.1% 11.4% 13.6% 15.9% 18.2% 20.5% 22.7% 25.0% 27.3% 29.5% 31.8% 34.1% 36.4% 38.6% | ||||||||||
