Pot Odds Calculator for Texas Hold’em

The formula is call ÷ (current pot + call) × 100. The current pot already includes the opponent’s wager. The denominator is the pot after you add your call. This is exact price arithmetic, not a simulation: the tool does not deal random hands, inspect your cards, or run a poker solver.

For the default example, the pot contains $60 and you must call $20. Calling makes an $80 pot. Your contribution is $20 ÷ $80 = 0.25, so the break-even equity is 25%. Do not add the opponent’s $20 bet again; it is already part of the $60 input. Double-counting that wager would make the call look cheaper than it is.

Pot odds expressed as a ratio use the current pot divided by the call: $60 ÷ $20 = 3-to-1. A 3-to-1 reward requires a one-in-four share, or 25%, because the final total includes the money you risk. Dividing $20 by $60 instead would answer a different question and overstate the required equity.

The same arithmetic works in dollars, euros, tournament chips, or big blinds, provided both inputs use the same unit. Inputs accept up to two decimal places. Internally the tool converts those amounts to whole cents before adding them; displayed percentages round to one decimal place. Decisions near a threshold should use more precise equity estimates and account for rake.

Half-pot bet. A $40 pot plus a $20 bet leaves $60 before your $20 call. The pot odds calculator uses $20 ÷ ($60 + $20), giving 25.0% required equity. Open the example to restore its inputs, then change either amount to explore the price.

Pot-sized bet. A $100 pot plus a $100 bet leaves $200 before your $100 call. The pot odds calculator uses $100 ÷ ($200 + $100), giving 33.3% required equity. Open the example to restore its inputs, then change either amount to explore the price.

Quarter-pot bet. A $40 pot plus a $10 bet leaves $50 before your $10 call. The pot odds calculator uses $10 ÷ ($50 + $10), giving 16.7% required equity. Open the example to restore its inputs, then change either amount to explore the price.

These examples describe the price, not whether a particular hand should continue. In a heads-up all-in pot with no rake or further betting, a hand with 30% showdown equity clears the first example’s 25% threshold but falls below the second example’s 33.3% threshold. The tool leaves your hand’s equity estimate to you.

This table describes an opponent betting a fraction of the pot that existed before the bet. If that earlier pot is P and the wager is B, you call B into a final pot of P + 2B. The required equity is B ÷ (P + 2B). These percentages come from the same definition as the pot odds calculator above.

A quarter-pot bet needs 16.7% equity; a third-pot bet needs 20%; and a half-pot bet needs 25%. A two-thirds-pot wager raises the threshold to 28.6%, while a three-quarter-pot wager needs 30%. Each increase makes the call more expensive relative to the final reward.

A pot-sized wager needs 33.3% equity. An overbet of one and a half times the pot needs 37.5%, and a double-pot bet needs 40%. A double-pot wager does not require winning twice as often: the opponent’s money also increases the reward. Use the pot odds calculator for amounts between these standard sizes.

An out is an unseen card that improves your hand in the way you are counting. With two hole cards and three flop cards known, 47 cards remain unseen. With one card to come from the flop, n outs have probability n ÷ 47. After a missed turn there are 46 unseen cards, so the river-only probability is n ÷ 46, assuming the outs remain unchanged.

A four-out gutshot completes by the river about 16.5% of the time from the flop. An eight-out open-ended straight draw completes about 31.5%. A nine-out flush draw completes about 35.0%, and a combined flush plus open-ended straight draw can have 15 distinct outs, completing about 54.1%. Do not count the cards shared by both draws twice.

The two-card formula is 1 − ((47 − n) ÷ 47) × ((46 − n) ÷ 46). It subtracts the probability of missing on both cards from one. Use it only when you will see both remaining cards for the price being assessed. An all-in call can meet that condition; a normal flop call with possible turn betting does not guarantee it.

Even clean-looking draws can lose. A completed flush can be lower than an opponent’s flush, and a paired board can allow a full house. You can also win without completing the draw, or split the pot. Showdown equity is your expected share of the pot across all outcomes, including ties. A simple completion percentage does not supply that estimate.

The clearest use of a pot odds calculator is a heads-up all-in decision with one pot, no further action, and no rake. Compare the price threshold with your independently estimated showdown equity. At exactly the threshold the call breaks even under those assumptions; a small apparent edge can disappear when the room deducts rake.

When more betting can follow, implied odds concern additional money you might win after improving. Reverse implied odds concern additional losses after making a hand that still comes second. Neither is included here. A call that looks attractive using two-card draw odds can become expensive when you miss the turn and face another bet.

For multiway pots, count only money you are eligible to win, consider players still to act, and assess your equity against every continuing player. Side pots require separate calculations. Tournament payout pressure can also make chip equity differ from prize-money value. This tool does not model any of those adjustments.

A zero call with a positive pot means checking is free; it is not a signal to fold. Negative amounts, empty fields, more than two decimal places, or a call larger than the entered current pot need correction. The tool shows an error rather than turning those entries into a misleading zero-percent result.

FlopKit maintains this pot odds calculator and the explanations on this page. The result comes from the formula shown above; no Monte Carlo simulation, player statistics, or claimed expert review is involved. Each worked example exposes its inputs and denominator so you can reproduce the answer with any ordinary calculator.

For an independent reference on one-card and two-card probabilities, see the Pokerology drawing-odds chart. For the requirement to see both remaining cards and the importance of clean outs, read PokerStrategy’s explanation of the rule of four and two. The numbers here use the exact formulas rather than that rule’s mental-arithmetic approximation.

Found a discrepancy? Use the correction contact and include the page URL, both input amounts, the displayed result, and your expected calculation. The update date records content changes; it does not claim an external audit. Amounts in shared links are visible to anyone who receives the link, so share only the example you intend to disclose.