Poker Lab

A real beginner-friendly poker math lab: draw odds, hand probabilities, pot odds, and outs training. Less cowboy cinema, more actual numbers.

✔ Exact draw odds ✔ Pot odds vs equity ✔ Quick presets ✔ Starting hand probabilities ✔ Built for learning, not bluff poetry

Mode 1 — Outs & Pot Odds Lab

Quick preset Outs Street Pot size Call amount

Exact chance to improve

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Rule of 2/4 estimate

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Pot odds threshold

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Call EV (assuming $1 if hit, lose call if miss)

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Decision note

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Math verdict

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Visual comparison

Mode 2 — Starting Hand Odds

Quick exact probabilities from a fresh 5-card hand. Useful because people love saying “I always get junk” while statistics quietly rolls its eyes.

Hand event

Probability

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1 in X

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What it means

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Mode 3 — Outs Trainer

A lightweight trainer to teach the habit of estimating outs fast. Not glamorous, but glamorous people bust all the time.

Scenario: Click “New scenario” to begin.

Your outs estimate

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Math behind it

Flop to river hit chance ≈ 1 − ((47−outs)/47 × (46−outs)/46). Turn to river hit chance ≈ outs / 46.

Pot odds threshold is the break-even equity you need for a call: call / (pot + call). If your chance to improve is comfortably above that threshold, calling is mathematically more defensible. If it is below, your chips may be heading out for a walk without you.

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