Texas Hold'em Draw Odds & Pot Odds
Enter your outs, choose the street, and compare your draw chance to the price of a call.
Results
Assumes no fold equity, no future betting, and clean outs.
How to Use This Poker Odds Calculator
This tool is designed for no-limit Texas Hold'em draw decisions on the flop and turn. You enter your estimated outs, the current pot size, and the amount you must call. The calculator then gives you your exact drawing probability and compares it with the equity required by the pot odds.
- Outs = cards that improve your hand to likely winner status.
- Pot odds required equity = the minimum percentage you need to win often enough to make a call break even.
- Call EV = simplified expected value of calling now.
Poker Odds Basics: The Core Concepts
1) Outs
An out is any unseen card that can improve your hand. For example, if you have a flush draw after the flop, you typically have 9 outs. If you have an open-ended straight draw, you typically have 8 outs.
2) Drawing Probability
On the flop, there are usually 47 unseen cards. On the turn, there are usually 46 unseen cards. The calculator uses exact math (without replacement) rather than rough mental shortcuts, so you get a precise percentage.
3) Pot Odds
If the pot is $100 and you must call $25, your required equity is:
25 / (100 + 25) = 20%
If your chance to win is above 20%, a call is profitable in this simplified model. If below, it is unprofitable.
Rule of 2 and 4 (Fast Mental Math)
The classic shortcut says:
- On the flop, multiply outs by 4 to estimate your chance by river.
- On the turn, multiply outs by 2 to estimate your chance on the river.
Example: 9 outs on the flop gives about 36%. Exact value is slightly lower, which is why this calculator shows both numbers.
Example Walkthrough
Suppose you have a nut flush draw on the flop:
- Outs: 9
- Pot: $120
- Call: $40
The calculator will show your chance to hit by river and compare it to required equity of 25%. If your hit chance is above 25%, that call is mathematically good before considering implied odds and reverse implied odds.
Common Mistakes When Estimating Poker Odds
Counting dirty outs as clean outs
Not every apparent out is reliable. Sometimes your straight or flush card also pairs the board or gives villain a better hand. Discount those outs.
Ignoring opponent range
Math is strongest when paired with range analysis. If villain has many stronger draws or made hands that redraw, your equity can drop.
Forgetting future action
Real hands include turn and river betting decisions. This calculator gives a clean baseline. In-game, include implied odds, stack depth, and fold equity.
Advanced Notes for Better Decisions
- Implied odds: You may win additional chips on later streets when you hit.
- Reverse implied odds: You may lose more when you hit a non-nut hand.
- Fold equity: Raises and semi-bluffs can win immediately, increasing EV.
- Position: Being in position improves your ability to realize equity.
Quick Reference Outs Chart
- 4 outs: gutshot straight draw
- 8 outs: open-ended straight draw
- 9 outs: flush draw
- 12+ outs: combo draws (for example, straight + flush possibilities)
Use this calculator as your mathematical anchor. Over time, your intuition for profitable calls and folds will sharpen dramatically.