Outs calculator
Enter how many outs you have and where you are in the hand. The calculator shows the exact chance of hitting, next to the rule of 2 and 4.
- Chance of hitting
- 19.1%
- Rule of 2
- 18%
- Odds against
- 4.2 to 1
| Draw | Outs | Next card | By the river |
|---|---|---|---|
| Gutshot straight draw | 4 | 8.5% | 16.5% |
| Two overcards | 6 | 12.8% | 24.1% |
| Open-ended straight draw | 8 | 17.0% | 31.5% |
| Flush draw | 9 | 19.1% | 35.0% |
| Flush draw and gutshot | 12 | 25.5% | 45.0% |
| Flush draw and open-ender | 15 | 31.9% | 54.1% |
Counting outs
An out is a card that makes your hand the best one. A flush draw has 9 outs, an open-ended straight draw 8, a gutshot 4 and two overcards 6.
Count only the cards that actually win. An out that completes your straight but also puts three of a suit on the board may not be a clean out.
The rule of 2 and 4
Multiply your outs by 2 for the chance of hitting on the next card, and by 4 for the chance of hitting by the river when you are on the flop. The rule is close for small draws and overstates big ones, which is why the exact figure is shown next to it.
Use the two-card figure only when you will see both cards for the price you pay now, for example when you are all-in on the flop. Facing a bet with more betting to come, the one-card figure is the one to compare with your pot odds.
Questions
- How many outs does a flush draw have?
- Nine. There are 13 cards of each suit, and you can see four of them.
- What are the odds of hitting a flush draw?
- About 19% on the next card, and about 35% by the river when you are on the flop.
- How accurate is the rule of 2 and 4?
- Within a point or two for draws up to about 9 outs. With 15 outs the rule of 4 says 60% by the river, and the exact figure is 54%.
More tools
Practise the decisions themselves in the trainer: ten hands at a time, with the answer and the reason.