What does calling buy?
Calling adds money to a pot you might win. Pot odds tell you the share of that final pot you need, on average, to cover the cost of your call.
Equity is your expected share of the pot at showdown, including ties. Required equity is the break-even threshold set by the price. You calculate the threshold first, then compare it with an estimate of your hand’s equity against the opponent’s range.
“Current pot” includes your opponent’s bet. Money you put in earlier is already in the pot; it is not part of the additional cost of calling now.
A $50 call. A $200 final pot.
You hold A♠ J♠ on a K♠ 7♦ 2♠ flop. The pot is $100 and your opponent moves all-in for $50. You cover the bet. The current pot is now $150; calling adds another $50.
Suppose you estimate 35% equity against the opponent’s range. This is a supplied assumption for the example, not an equity calculation from the displayed cards. The actual figure depends on which hands your opponent can hold.
Ignoring rake, the call’s expected value relative to folding is 0.35 × $200 − $50 = +$20. Your expected share of the final pot is $70; subtract the $50 call to get the net result. A positive expectation does not mean you will win this particular hand.
What if your equity estimate is only 20%?
The price is unchanged, but the expectation becomes 0.20 × $200 − $50 = −$10. Folding is better than calling under those assumptions. The formula establishes the price; the range estimate determines whether your hand meets it.
Recognise the common prices.
These bet sizes are fractions of the pot before your opponent bets. All rows assume a heads-up call with no rake or further betting.
| Their bet | Equity needed |
|---|---|
| Quarter pot | 16.7% |
| Third pot | 20% |
| Half pot | 25% |
| Three-quarter pot | 30% |
| Full pot | 33.3% |
| Twice the pot | 40% |
Check what the model leaves out.
A draw’s chance of improving is not automatically its equity: some improving cards still lose, and you may already be ahead. If another bet can follow, today’s call may not buy a showdown. Rake reduces the pot you receive, and tournament payout pressure can make chip value differ from prize value.
Change the price.
Keep the pot after your opponent’s bet at $150. Change your call to see how the break-even threshold moves.
Heads-up final-street or all-in call. No rake or tournament payout effects. This tool calculates the price; you estimate your hand’s equity separately.
Put the idea to work.
Five questions, each followed by an explanation. Your practice here stays in this page and does not require an account.
There is $120 in the pot after your opponent’s bet. Calling costs $40. What equity do you need to break even?
Price first. Range next.
- Count the pot after the opponent’s bet.
- Add your call and calculate the break-even threshold.
- Compare it with a reasoned equity estimate.
- Check for future betting, rake and tournament effects.
Write down one hand you found difficult. Work out the price, then list the assumptions you would need to assess the call.
See how this fits into the complete course