You have $200 in front of you and the action is on you. Can you put all $200 into the pot?
In no-limit poker, you may be able to. In pot-limit, only if the maximum legal wager is large enough. In fixed-limit, you cannot simply choose $200 as your bet size because the game uses predetermined betting increments.
The hand itself has not changed. The betting rules have.
What Do No-Limit, Pot-Limit and Fixed-Limit Mean?
Texas Hold'em and Omaha are poker variants. Their rules determine things such as how many hole cards you receive, how community cards are dealt and how you make a hand.
No-Limit, Pot-Limit and Fixed-Limit describe the betting structure. They determine how much a player is allowed to put into the pot when betting or raising.
A Hold'em game can use more than one betting structure. Omaha can too. Pot-Limit Omaha, usually shortened to PLO, combines Omaha's game rules with a pot-limit betting structure.
The main difference between the three structures is how the maximum wager is set.
| Betting Structure | What Sets the Maximum? | Basic Rule |
|---|---|---|
| No-Limit | Your available stack | You can wager up to all the chips you have in front of you |
| Pot-Limit | A pot-based calculation | Your bet or raise cannot exceed the permitted pot-sized amount |
| Fixed-Limit | Predetermined betting increments | The game sets the amount used for bets and raises |
No-Limit Still Has Betting Rules
No-Limit gives players the widest range of bet sizes, but minimum bets and raises still apply.
The maximum is straightforward: you cannot wager more than the chips you have available.
If you have $180 left, $180 is the most you can put into the pot. Betting the entire $180 is going all-in.
How the Minimum Raise Works
Suppose a player bets $10 and the next player raises to $25.
That is a raise of $15:
$25 – $10 = $15
If another player wants to make a full raise, they must increase the bet by at least the same amount.
The minimum re-raise is therefore:
$25 + $15 = $40
So the player must raise to at least $40.
This is why the difference between raise to and raise by matters.
A player who says "raise to $25" is making the total bet $25. A player who raises "by $15" is adding $15 to the amount they are facing.
What Happens With a Short All-In?
A player who does not have enough chips to make a full raise can still go all-in.
Using the previous example, suppose a full raise would have to reach at least $40, but another player has only $32 remaining. That player can still move all-in for $32.
The $32 action is not a full raise.
A single short all-in normally does not reopen the betting for a player who has already acted and no longer has the right to raise. Several short all-ins can, in some situations, add up to the equivalent of a full raise and reopen the action. The exact sequence of bets matters.
An all-in is not automatically a full raise.
Effective Stack Changes How Much Is Really at Risk
Suppose you have $500 and your only opponent has $80.
You have $500 available, but you cannot win $500 from that opponent. Only $80 from each player is effectively at risk against the other.
The effective stack is therefore $80.
In no-limit poker, the smaller stack often determines how much either player can actually win or lose against a particular opponent.
Pot-Limit Gets Trickier When You Raise
Pot-Limit allows different bet sizes, but there is a maximum based on the pot.
If the pot is $30 and nobody has bet yet, the largest opening bet is normally $30.
Once another player has bet, calculating a pot-sized raise requires one extra step.
How to Calculate a Pot-Sized Raise
Suppose:
- The pot is $30
- Your opponent bets $10
- You want to make the largest legal raise
First account for the amount you must call.
The pot-size calculation becomes:
$30 + $10 opponent bet + $10 call = $50
You can then raise by as much as $50.
Because you first matched the $10 bet, your maximum total contribution is:
$10 call + $50 raise = $60
So the maximum action is:
Raise to $60
The key detail is that the call is included when calculating the maximum raise. A pot-sized raise is not based only on the pot as it stood before the opponent bet.
Why Pot-Limit Pots Can Still Become Large
Pot-Limit prevents players from making arbitrary overbets, but the maximum wager grows along with the pot.
If the pot is $20, a pot-sized bet is $20.
If the pot later reaches $200, a pot-sized bet is $200.
A player cannot immediately choose any amount up to their stack, but larger bets become available as more money enters the pot.
Fixed-Limit Uses Predetermined Betting Increments
Fixed-Limit removes most bet-sizing choices.
Consider a common $2/$4 Fixed-Limit Hold'em structure.
The game may use:
- $2 as the small bet
- $4 as the big bet
- $1 small blind
- $2 big blind
- $2 bets and raises before the flop and on the flop
- $4 bets and raises on the turn and river
If the betting level is $2, you cannot decide to bet $5 because you think it suits the situation better. Bets and raises follow the fixed increment for that round.
A player with fewer chips than the required amount can still end up all-in for less, but players with enough chips cannot freely choose an alternative size.
Why $2/$4 Can Mean Different Things
The numbers beside a poker game do not always describe the same thing.
In a $2/$4 No-Limit Hold'em cash game, $2 and $4 commonly refer to the small blind and big blind.
In $2/$4 Fixed-Limit Hold'em, $2 and $4 commonly refer to the small and big betting increments instead.
That is why a $2/$4 Fixed-Limit game can have blinds of $1/$2.
Check the structure before joining a game; the numbers do not always refer to the blinds.
Fixed-Limit Games Can Have a Raise Cap
Many Fixed-Limit games also limit how many raises are allowed during one betting round.
A game might allow a bet, a raise, a re-raise and a final cap. Once the cap is reached, the remaining players can usually only call or fold.
This is not a universal number across every poker room or tournament. Raise caps are part of the specific game or house rules, so they should be checked when playing an unfamiliar structure.
How the Betting Structure Changes a Decision
The three formats change what options are available when you make a decision.
No-Limit Makes Bet Size Part of the Strategy
In no-limit poker, players can choose from a wide range of legal sizes.
Depending on the situation, a player might bet one-third of the pot, the full pot, more than the pot or all-in.
That flexibility changes the price offered to an opponent.
A $20 bet into a $100 pot asks for a very different commitment from a $150 bet into the same pot. The cards may be identical, but the opponent must risk a different amount to continue.
Large sizing also means that one decision can involve a substantial part of the effective stack.
Pot-Limit Links the Maximum Bet to the Pot
Pot-Limit still gives players sizing choices, but the ceiling depends on how much has already entered the middle.
When the pot is small, the maximum legal bet is relatively small.
As the pot grows, so does the amount a player can legally bet or raise.
Earlier betting decisions therefore influence the range of sizes available later in the hand.
Fixed-Limit Removes Most Sizing Choices
In Fixed-Limit, the main question is usually not whether to bet $10, $30 or $80. The amount has already been set by the structure.
Players still have to decide whether betting, raising, calling or folding is profitable, but they cannot use an arbitrary larger size to change the price.
Pot-odds decisions therefore take place within predetermined betting increments rather than against the much wider range of sizes available in no-limit poker.
Three Betting Rules to Keep Straight
No-Limit Does Not Mean There Is No Minimum
No-Limit describes the upper betting limit.
Minimum opening bets and minimum raises still exist.
"Raise Pot" Requires a Calculation
When facing a bet in Pot-Limit, the maximum raise includes the amount needed to call before the additional raise is calculated.
Simply looking at the pot and adding that number is not always correct.
$2/$4 Does Not Always Describe the Blinds
In No-Limit or Pot-Limit cash games, the two numbers commonly refer to the blinds.
In Fixed-Limit, they commonly refer to the small and big betting increments.
Which Structure Should You Learn?
Choose based on the type of decision you want to practise.
| If You Want to Focus On | Betting Structure |
|---|---|
| Flexible sizing, stack leverage and all-in decisions | No-Limit |
| Pot calculations and changing maximum bet sizes | Pot-Limit |
| Pot odds and betting decisions without variable sizing | Fixed-Limit |
No-Limit exposes you to the widest range of sizing decisions.
Pot-Limit adds the need to calculate the legal maximum when pots become contested.
Fixed-Limit removes most sizing choices but leaves the underlying decisions about ranges, pot odds, value and folding intact.
No-Limit vs Pot-Limit vs Fixed-Limit at a Glance
| Feature | No-Limit | Pot-Limit | Fixed-Limit |
|---|---|---|---|
| Bet/raise sizing rule | Variable sizing up to your available stack | Variable sizing up to the pot-based maximum | Predetermined fixed increment for that round |
| Variable bet sizes | Yes | Yes, within the legal maximum | Generally no |
| Can overbet | Yes | No | No |
| Can go all-in | Yes, up to your stack | Yes, if your stack does not exceed the legal maximum | Yes, when the legal bet, raise or call uses all of your remaining stack |
| Minimum raise rule | Based on the previous full bet or raise | Based on the previous full bet or raise | Uses the fixed betting increment |
| Main sizing challenge | Choosing a size | Calculating the maximum | Understanding the betting schedule |
| How the ceiling changes | Stack-dependent | Grows with the pot | Set by the structure |
FAQ
What is the difference between No-Limit, Pot-Limit and Fixed-Limit poker?
They use different rules for determining bet and raise sizes.
In No-Limit, you can wager up to your available stack. In Pot-Limit, a pot-based calculation determines the maximum. In Fixed-Limit, bets and raises use predetermined increments.
Can you go all-in in Pot-Limit poker?
Yes, if your remaining stack is no larger than the maximum legal wager.
If the pot-limit calculation allows you to wager $80 and you have $60 left, you can go all-in for $60. If you have $200, you cannot shove the full $200 when the maximum legal amount is only $80.
How do you calculate a pot-sized raise?
When facing a bet, include the amount required to call before calculating the maximum additional raise.
For example, with $30 in the pot and a $10 opponent bet:
$30 + $10 + $10 call = $50
You may raise by up to $50, making the maximum total amount $60.
What does $2/$4 mean in Fixed-Limit poker?
In a common $2/$4 Fixed-Limit structure, $2 is the small betting increment and $4 is the big betting increment.
Bets usually use $2 before the flop and on the flop, then $4 on the turn and river. The blinds may therefore be $1/$2 rather than $2/$4.
Is Limit Hold'em the same as Fixed-Limit Hold'em?
In common poker usage, Limit Hold'em usually refers to Fixed-Limit Hold'em.
Using the full term makes the betting structure explicit when comparing it with No-Limit and Pot-Limit.
Is Pot-Limit the same as Pot-Limit Omaha?
No.
Pot-Limit is a betting structure. Omaha is a poker variant.
Pot-Limit Omaha, or PLO, is Omaha played with pot-limit betting rules.
