This free poker odds calculator shows you how to calculate pot odds and equity in seconds. Set the pot, what you must call, and how many outs you hold — then see instantly whether chasing the draw is a profitable, +EV call.
Two cards to come assumes the money is all-in now. Facing a bet on a single street, use one card — you'll have to pay again to see the river.
Pot odds are the single most important number in poker — and the fastest way to stop leaking chips on draws. Combine them with clean outs and a glance at the poker hand rankings chart, and every call becomes a simple maths problem.
Call 25 into a 100 pot and you're getting 4-to-1 — you only need to win one time in five to show a profit. Calculating pot odds is what turns a vague 'feels like a call' into that exact threshold. Players who skip the poker math call too often on weak draws and fold too often on strong ones — bleeding chips on exactly the marginal spots that decide a session.
Drawing hands are the classic case: a flush draw hits about 35% by the river, so it's a snap-call at 2-to-1 or better and only becomes a fold once the price shortens toward 1-to-1. But the same lens applies to bluff-catching, set-mining and calling all-ins. Once counting your outs and running them through a poker equity calculator is automatic, you stop guessing on the turn and river — the two streets where the pots, and the mistakes, are biggest.
The numbers worth committing to memory — how often each draw completes based on your outs, and the price that makes chasing it profitable.
| Draw | Outs | Hit by river | Odds you need |
|---|---|---|---|
| Flush draw | 9 | ~35% | 1.9 : 1 |
| Open-ended straight | 8 | ~32% | 2.1 : 1 |
| Flush + open-ender | 15 | ~54% | 0.9 : 1 — you're the favourite |
| Two overcards | 6 | ~24% | 3.2 : 1 |
| Gutshot straight | 4 | ~17% | 5 : 1 |
| Pocket pair → set | 2 | ~8% | 11 : 1 |
"Hit by river" assumes both cards to come — use it when the money goes in on the flop. Facing a bet on a single street, roughly halve the equity (the rule of 2).
Five quick steps that take seconds once they're second nature.
Add up everything in the middle, then note the exact amount you must call. That ratio is your pot odds — 100 in the pot, 25 to call is 4-to-1.
How many unseen cards make your hand? Nine for a flush draw, eight for an open-ended straight. Be honest — discount outs that could hand an opponent an even better hand.
Use the rule of 4 and 2: multiply outs by 4 on the flop (two cards to come) or by 2 on the turn. Nine outs ≈ 36% on the flop, ≈ 18% on the turn.
Line your equity up against the equity the price demands. If your chance to win clears it, the call is already profitable — no further thought needed.
When it's close, the tiebreaker is what happens next: the extra chips you'll win when you hit (implied odds) versus the times a made hand still loses (reverse implied).
You're on the turn with A♠ J♠ on a Q♠ 7♠ 2♥ 4♣ board — the nut-flush draw, nine spades to the best possible hand. The pot is 120 and your opponent bets 40 with stacks still behind. You're calling 40 to win 160, so you need 40 ÷ 200 = 20% equity. With one card to come your flush hits about 18% (9 outs × 2) — a hair short, so on price alone this is a fold. But you're drawing to the nuts: when a spade lands you'll often win their whole stack, and those implied odds turn a thin fold into a comfortable call.
Verdict — a fold on price alone, but the nut-flush implied odds make it a callFix Every call to a draw needs the price and the outs. If you didn't work both out, you're guessing, not calling.
Fix An out that also improves your opponent isn't clean. Discount flush outs that pair the board and straight outs that back into a bigger draw.
Fix Pot odds are per decision. A cheap turn call can commit you to an expensive river — price the whole hand, not one bet.
Fix A 35% call that bricks two-thirds of the time is doing exactly what the maths promised. Losing the hand here is priced in — it isn't a mistake to correct.
Grab a pen if it helps — each of these is a real call you can price out in a few seconds.
The pot is 90 and your opponent bets 30. What pot odds are you getting to call?
You call 30 to win the 90 already there — 90 ÷ 30 = 3-to-1. You need to win just 25% of the time to break even.
You hold a flush draw (9 outs) on the flop, with two cards to come. Roughly what's your equity?
Rule of 4 on the flop: 9 outs × 4 ≈ 36%. On the turn (one card to come) it drops to about 18%.
You need 33% equity to call, and your draw gives you 25%. What's the textbook play?
Your equity is short of the price, so a pure pot-odds call loses money. Only continue if you'll win enough extra on later streets when you hit (implied odds).
You scored 0 / 3. The more you drill this, the faster the maths becomes instinct.
The ratio between the current pot and the amount you must call. As equity, it's the minimum win-percentage that makes calling break even: call ÷ (pot + call).
A fast way to turn outs into equity: multiply your outs by 4 on the flop (two cards to come) or by 2 on the turn (one card). It's an estimate, but accurate enough at the table.
The extra money you expect to win on later streets if you hit your draw. Strong implied odds justify calling slightly worse than your immediate pot odds.
Yes — pot odds are universal. The pot, the bet and your outs work the same whether you're playing Hold'em, Omaha or any other variant.