♠ Madman Poker Lab · free tools by Jack Maniac

Should I Fire?

A free poker bluff calculator and fold equity calculator for No-Limit Hold'em. Enter the pot, your bet, your outs and your read. You'll see how often the bet has to work and whether it beats checking.

Bluff and Tilt Cheat Sheet preview
📄 Free printable cheat sheetFold % by bet size, stop-firing signs, the semi-bluff filter and the 5 tilt types on one page.
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1 · The spot

$
$

Street

Your outs if called

Cards that make you the best hand on the next card. 0 = pure air.

2 · Your read

How often does this player fold to this bet, here? Pick a type, then fine-tune the slider if you have a real read.

He folds about15%

Opponents still in the pot

HOLSTER IT

Folds needed: pure bluff
40%
bet ÷ (bet + pot)
Folds needed vs checking
40%
counts your equity
Your estimated folds
15%
all opponents fold
EV of betting
$0
per attempt
EV of checking
$0
free card
Caller needs equity
29%
call ÷ final pot

3 · The filter

Cheat sheet: how often a pure bluff must work

Bet sizeFolds neededCaller needs

Folds needed = bet ÷ (bet + pot). Caller's equity = call ÷ (pot + bet + call). Multiway: if each of two players folds 40% of the time, both fold only 16% of the time.

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How the calculator works

What is fold equity?

Fold equity is the share of your bet's value that comes from opponents folding. A pure bluff needs folds of at least bet ÷ (bet + pot): 50% for a pot-sized bet, 33% for half pot.

How does this fold equity calculator handle draws?

It adds your equity when called (your outs ÷ unseen cards, for one card to come) and compares betting with checking for a free card. A semi-bluff with real outs needs fewer folds than a pure bluff.

Is it a GTO solver?

No. It's a quick poker bluff calculator for training judgment: one caller, one card to come, no betting after a call. Real hands are messier.

What does the poker tilt quiz measure?

How you tend to react after big wins, bad beats and needling. It sorts you into Steamer, Chaser, Turtle, Grudge or Iceman, and shows the fair adjustments other players make against each.

Unleash the Madman by Jack Maniac, book cover

Want the whole leash?

Both tools come from Unleash the Madman: Winning Big with Controlled Chaos in No-Limit Hold'em, Jack Maniac's short LAG playbook. It covers the overbet and semi-bluff filters, the brake signals for when to stop firing, and the full Tilt Trigger System. $9.99 on Kindle, or free with Kindle Unlimited.

See it on Amazon →
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