pot limit omaha odds calculator

Pot Limit Omaha is a game of close equities, huge draws, and expensive mistakes. A strong player does not guess at odds. They calculate them. This tool gives you a practical, fast way to evaluate whether a call is profitable in common PLO spots and how large a legal pot-size raise can be.

How to use this calculator

• Pot size now: Enter the amount already in the middle after your opponent's bet is included.
• Amount to call: Enter the exact price you must pay to continue.
• Street: Choose flop, turn, or river to set how many cards are still to come.
• Clean outs: Outs that improve you to what you believe is usually the winning hand.
• Win when hit: Use this to discount non-nut draws or vulnerable made hands.

The output compares your adjusted equity against required equity and gives a quick +EV / -EV signal for a simplified all-in model.

Core PLO math behind the tool

1) Pot odds and required equity

If the pot is P and you must call C, your break-even equity is:

Required Equity = C / (P + C)

That percentage is the minimum share of the final pot you need to justify a call.

2) Chance to hit your draw

With O outs and U unseen cards:

• One card to come (turn to river): O / U
• Two cards to come (flop to river): 1 - ((U-O)/U)*((U-O-1)/(U-1))

In Omaha, unseen cards are typically 45 on the flop and 44 on the turn (assuming no exposed mucked cards).

3) Adjusted equity

Not every hit wins. A non-nut flush, weak straight, or dominated two-pair can lose at showdown. So the calculator applies:

Adjusted Equity = Hit Chance × (Win When Hit %)

PLO-specific outs counting tips

Counting outs in Omaha is harder than in Hold'em. You must use exactly two hole cards and exactly three board cards. That changes everything.

• Discount dominated flush outs: If your flush is not the nuts, remove some outs.
• Respect board pairing: Straight and flush completions can still lose to full houses.
• Blockers matter: Holding key cards can reduce opponent nut combinations.
• Beware dirty wraps: Some straight outs complete higher straights for villains.
• Multiway = tighter outs: In larger pots, non-nut improvements lose value quickly.

Pot-limit raise sizing formula (quick reference)

A lot of players mis-size raises in PLO. The legal max raise depends on what is in the middle and what you must call.

• Given: pot now = P, call = C
• Max raise-to total: P + 2C
• Raise amount on top of call: P + C

Example: pot now 150, call 50. Max raise-to is 250 total.

Worked examples

Example 1: Nut flush draw on flop

Pot now is 90, call is 30, and you estimate 9 clean outs twice. Your hit chance by the river is about 35%, while required equity is 25%. In a simple model, this is a clear continue.

Example 2: Big wrap with dirty outs

You first count 17 outs, but remove 4 because several cards make a non-nut straight on a paired board. Enter 13 clean outs, not 17. This single adjustment can flip an apparently profitable call into a fold.

Common mistakes this tool helps prevent

• Calling because a draw “looks big” without comparing to break-even equity.
• Using Hold'em shortcut odds in Omaha spots with dominated outcomes.
• Ignoring that turn spots have only one card left and much less realization.
• Misunderstanding legal pot raises and accidentally under-raising.

Final note

This calculator is designed for practical table decisions, not full game-tree analysis. Real PLO EV also depends on position, stack-to-pot ratio, fold equity, future betting, and range vs range dynamics. Still, if you consistently make mathematically sound decisions on pot odds and clean outs, your baseline performance will improve dramatically.