Donk Bet Calculator

Donk bet calculator quick answer

Use a donk bet calculator after you identify a possible out-of-position lead. Enter the pot, lead size, equity against the calling range, and estimated folds. The result shows simplified one-street EV and the break-even fold rate. It cannot choose a GTO frequency or replace range work.

• A donk bet is an out-of-position lead into the preflop raiser before that player acts on the street.
• For a pure bluff, required folds equal lead size divided by pot plus lead size.
• A 33% pot lead needs about 24.8% folds with zero equity when called; a 50% pot lead needs 33.3%.
• Equity must be estimated against the hands that call, not the opponent's full opening range.
• The calculator excludes rake, raises, stack depth, and later-street decisions.

How to test a donk bet without pretending it is a solver output

A donk bet is a lead by the out-of-position caller into the preflop raiser before the raiser acts. The definition belongs on the glossary page. This calculator handles a different question: if you lead a particular amount, how often must the opponent fold, and what happens if they call? Keeping those jobs separate helps the glossary answer terminology while this page answers a live sizing question.

Start with the honest price of the lead. With no showdown equity, a $33 bet into a $100 pot needs 24.8% folds because you risk $33 to win $100. The calculation is not a read on the table. It simply tells you the threshold your read must clear. If you estimate 20% folds in that spot, the pure bluff misses. If you estimate 30%, it clears the formula before rake and future action.

Equity when called changes the threshold. A draw or made hand may win part of the pot even after the opponent continues, so it needs fewer immediate folds than air. The useful number is equity against the calling range. A hand can have respectable equity against a wide opening range and poor equity against the strong hands that call a lead. That distinction is where many attractive calculator outputs fall apart.

PokerStars' low-paired-flop example is a useful reminder that a lead can make sense when the caller holds more of the strongest combinations and the raiser may check back. It is not permission to lead every low board. Positions, preflop action, stack depth, and the opponent's actual response to a small lead decide whether that example carries over to your table.

Run the tool three times after a session: first with a cautious fold estimate, then with your best estimate, then with the most optimistic figure you can defend. If the EV only turns positive in the final version, the play is fragile. If it remains positive across all three, you have a better candidate to study with ranges or a solver. A large positive output from a weak assumption is still weak evidence.

The model stops when the opponent folds or calls once. It does not price rake, check-raises, implied odds, or a turn card that changes who can bet. That is deliberate. A clean one-street number is useful, but it should make the assumptions visible rather than hiding the difficult parts of a poker hand behind a green label.