Pot Odds Calculator (2026): Call or Fold in One Look
Type the pot and the bet you are facing. You get the pot odds, the exact equity you need to break even, and the EV of the call in chips. Add your equity, or let the card picker estimate it against a random hand, and the tool tells you to call or fold.
The spot
Your chance to win at showdown. Leave it blank and use the card picker below to estimate it, or count outs and multiply by two or four.
The price
Add your equity or estimate it from cards to get a call or fold verdict.
No equity yet? Count your outs
Enter how many cards improve your hand and which street you are on. The rule of two and four turns outs into an equity estimate you can drop into the field above.
An exact hypergeometric estimate, not the rounded rule of thumb. For a precise number against a real hand, use the card picker below.
Estimate my equity from cards
Pre-flopPick your two cards and the board. The tool runs your hand against a random opponent holding and writes the equity into the field above.
Your hand
Board (flop, turn, river)
Equity runs against this many random hands. One opponent is exact on the turn and river; more than one is a fast simulation.
Pick both of your cards to estimate equity.
Click a card to pick, click again to remove
How the pot odds math works
Required equity
The call divided by the final pot. Call 50 into a 100 pot and you need 50 of 200, which is 25%.
EV of the call
Win the pot plus the bet when you are ahead, lose the bet when you are behind, weighted by your equity.
Equity from cards
The card picker deals your hand against a random opponent and counts how often you win or tie at showdown.
Bet size to required equity
The equity you must have to break even against each common bet size, heads-up.
| Bet size | Pot odds | Required equity |
|---|---|---|
| Quarter pot | 5:1 | 16.7% |
| Third pot | 4:1 | 20.0% |
| Half pot | 3:1 | 25.0% |
| Two-thirds pot | 2.5:1 | 28.6% |
| Three-quarters pot | 2.3:1 | 30.0% |
| Full pot | 2:1 | 33.3% |
| 1.5x overbet | 1.7:1 | 37.5% |
| 2x overbet | 1.5:1 | 40.0% |
Common draws: outs, odds and the price
From the flop with two cards to come. The last column is the worst pot odds you can call and still break even.
| Draw | Outs | By the turn | By the river | Max price |
|---|---|---|---|---|
| Gutshot straight draw | 4 | 8.5% | 16.5% | 5.1:1 |
| Two overcards | 6 | 12.8% | 24.1% | 3.1:1 |
| Open-ended straight draw | 8 | 17.0% | 31.5% | 2.2:1 |
| Flush draw | 9 | 19.1% | 35.0% | 1.9:1 |
| Flush + straight draw | 15 | 31.9% | 54.1% | 0.8:1 |
One card to come (turn to river) roughly halves the river number. Multiply outs by four on the flop, by two on the turn, for a fast read.
Turning pot odds into a real decision
Pot odds are the cheapest edge in poker because the math is fixed and fast. The hard part is pairing the price with an honest equity estimate. Here is how to do both at the table.
Required equity is just the call over the final pot
Every pot odds question reduces to one fraction: the amount you call divided by the pot after you call. Facing a half-pot bet you are risking one chip to win three, so you need to win one time in four, which is 25%. Memorize the common sizes and you never have to do the division again.
Equity is the half people get wrong
The price is easy; your equity is the guess. Count outs and use the rule of two and four, or estimate against the range your opponent actually shows up with. The biggest leak is assuming villain is random when they have only bet strong hands.
Implied odds rescue draws that miss the direct price
A flush draw is about 19% with one card to come, so a half-pot river call looks like a fold on direct odds. If you expect to win a big bet when the flush hits, those future chips lower the equity you need now. That is implied odds, and it is why draws can call prices that pure pot odds reject.
Reverse implied odds cut the other way
Sometimes hitting your card still loses, or wins nothing because the action dries up. A weak flush against a possible bigger flush, or a low straight on a paired board, has reverse implied odds. Shade your equity down in those spots instead of trusting the raw number.
Minimum defense frequency is the mirror image
When you are the one betting, pot odds tell you how often a thinking opponent must continue to stop you from auto-profiting with bluffs. Facing a half-pot bet that number is about two thirds. It is the same fraction read from the other side of the table.
Pot odds explained: when to call and when to fold
If you have ever stared at a bet and wondered whether the price was right, this guide is for you. As of 2026, pot odds are still the first piece of math every winning player masters, because they turn a gut feeling into a clear call or fold. Below we cover what pot odds are, how to read required equity, how implied odds change the picture, and how to use the calculator step by step.
What are pot odds?
Pot odds are the ratio between what you can win and what you must pay to keep playing. If the pot is 100 and you face a 50 bet, you are paying 50 to win 150, which is 3 to 1. Expressed as a percentage, you need to win at least 25% of the time for the call to break even. That 25% is your required equity.
The number never depends on your cards alone. It depends on the size of the pot and the size of the bet. That is why a small bet is cheap to call even with a weak hand, and a big overbet demands a strong one. The calculator does this division for you and shows the exact equity you need.
I built this calculator and cross-check every number it shows against a Monte Carlo simulation. The result that still catches people out is the river overbet: a pot-sized bet only needs 33% to call, but a 1.5x overbet jumps the requirement to 37.5%, and that small change flips a lot of bluff-catchers from call to fold.
Why pot odds decide most hands
Almost every call you make comes down to comparing the price with your chance of winning. Here are the four situations where pot odds change the line.
Calling a bet with a made hand
When you hold a bluff-catcher, pot odds set the bar. If you only need 25% and you beat a quarter of villain's bets, you call. Below that bar it is a fold no matter how much you dislike it.
Chasing a draw
A flush draw is about 35% to come in by the river. Against the right price that is an easy call; against an overbet it is not, unless implied odds make up the difference.
Sizing your own bets
Pot odds work backward too. The size you choose sets the equity your opponent needs, so you can price draws out or invite a call on purpose with a bluff or a value bet.
Bluffing and defense
Minimum defense frequency comes straight from pot odds. It tells you how wide to defend so nobody can print money bluffing into you, and how often your own bluffs need to work.
How required equity is calculated
Required equity is the call divided by the pot after you call. Facing a bet of 50 into a 100 pot, the final pot is 200 and your 50 is a quarter of it, so you need 25% equity. A full-pot bet makes the final pot three bets wide, so you need a third. An overbet of one and a half pots needs 37.5%. The pattern is simple: the bigger the bet relative to the pot, the more equity you need.
The EV of the call is the same idea in chips. You win the pot plus the bet when you are ahead and lose the bet when you are behind, each weighted by how often it happens. When your equity sits exactly on the required number the EV is zero, which is the definition of a break-even call.
To estimate your equity from cards, the calculator deals your exact hand against a uniformly random opponent and a random runout, thousands of times when the board is open and every combination exactly when only one card is left. The result is the share of the pot you win on average, with ties counted as half.
How to use the pot odds calculator
The tool mirrors a real decision at the table. On toolsgambling.com you can use the pot odds calculator for free, with no sign-up and no limits. Follow these five steps.
- 01
Enter the pot
Type the chips already in the middle before the bet you are facing. Use the slider for quick changes.
- 02
Enter the bet to call
Type the amount you must put in. The quick buttons set common sizes like half pot or a full-pot bet.
- 03
Read the required equity
The tool shows your pot odds as a ratio and the exact equity percentage you need to break even.
- 04
Add your equity
Type your win chance, or open the card picker to estimate it against a random hand. The verdict turns green for a call and the EV shows the value in chips.
- 05
Factor in implied odds
On a draw, switch on implied odds and enter the chips you expect to win later. Watch the required equity drop and the call become correct.
Common pot odds mistakes to avoid
Even players who know the fractions still leak money in these spots.
Treating every opponent as random
The card picker assumes a random hand, but a player who only bets strong has a tighter range. Your real equity against that range is lower, so shade your estimate down.
Forgetting the bet is part of the pot
You win the pot plus the bet you call, not just the pot. Leaving the bet out inflates your pot odds and tempts bad calls.
Counting implied odds that do not exist
Implied odds only help if you actually get paid when you hit. Against a short stack or a player who shuts down, the extra chips are imaginary.
Ignoring reverse implied odds
A second-best draw can complete and still lose. When your made hand will often be beaten, the real price is higher than the raw pot odds suggest.
Chasing in multiway pots blindly
More players in the pot add dead money but also more ways to lose. Recount your equity for the actual number of opponents instead of the heads-up figure.
Calling on autopilot with the right price
Correct pot odds make a call break-even, not mandatory. Position, future streets, and your read still matter when the spot is close.
Pot odds glossary
The core terms you will see around pot odds, equity, and betting math.
Pot odds and equity terms
- The ratio between the chips you can win and the chips you must call, often written as the equity you need to break even.
- The minimum chance of winning that makes a call break even. It equals the call divided by the pot after you call.
- Your share of the pot based on how often your hand wins or ties at showdown.
- Extra chips you expect to win on later streets when your draw completes, which let you call with less raw equity now.
- The chips you expect to lose when you complete a second-best hand, which raise the real price of a call.
- The unseen cards that improve your hand to a likely winner. Multiply outs by four on the flop or by two on the turn for a fast equity read.
- The average chips a decision wins or loses over the long run. A call is correct when its EV is positive.
- How often the player facing a bet must continue so a bluff cannot auto-profit. It comes straight from the bet size.
Pot odds
Required equity
Equity
Implied odds
Reverse implied odds
Outs
Expected value (EV)
Minimum defense frequency
Quick reminder
Pot odds give you the price, never the whole decision. Pair them with an honest equity estimate, the player count, and your read before the chips go in.
More free poker tools on toolsgambling.com
Pot odds work best alongside the rest of your poker math. These free calculators pair naturally with this one.
Play responsibly
Pot odds sharpen your edge, but poker still carries variance and risk. Set limits, never play with money you cannot afford to lose, and if the game stops being fun, take a break. For free, confidential help visit BeGambleAware.org.
Evgeniy Volkov
Fullstack developer with a background in mathematics. I build the calculators and game-style tools on ToolsGambling with Pixi.js and modern web tech, and every result uses transparent probability formulas you can verify yourself.
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