Poker Shark
Poker Equity Calculator
Calculate hand vs hand or hand vs range equity, pot odds, EV, implied odds, SPR, and board texture for any poker spot. Free, instant, and no signup required.
What poker equity actually means
Equity is the percentage of the pot you'd win if both players went all-in and ran out the remaining streets. Against one opponent, pocket aces have ~85% equity preflop; a flush draw on the flop has ~36% against a made hand. Every decision in poker is a bet — literally or implicitly — that your equity plus fold equity exceeds the price you're paying.
This calculator handles the three versions that matter in practice: hand vs hand (pocket pair vs big ace), hand vs range (your hand vs the hands your opponent could have based on their actions), and range vs range (both players' full distributions — available in the range advantage calculator).
If you want the full tutorial with worked examples and a framework for reading equity at the table, see the poker equity guide. If you want to drill spots against realistic opponents, the exploitative poker training arena generates them continuously.
Stack-to-Pot Ratio
—Enter a spot to see the SPR zone.
Equity
How It Works
Pick your cards, set the stacks, and the calculator does the math. Here's what each number means.
Stack-to-Pot Ratio (SPR)
SPR is your effective stack divided by the pot. It tells you how deep you are relative to what's already in the middle — lower SPR means more of your stack is committed.
Equity vs Villain
Assign villain specific cards for exact equity, or click their avatar to set a range for Monte Carlo equity. The tool calculates how often you win this matchup across all possible runouts.
Pot Odds
The price the pot is offering you. If you need to call $50 into a $200 pot, you're investing 20% of the final pot. Your equity needs to exceed this price for a profitable call.
Implied Odds
When direct pot odds fall short, implied odds measure how much more you need to win on later streets. Deeper stacks and nut draws improve implied odds — villain is more likely to pay off a big hand.
Draw Quality
Not all draws are equal. A nut flush draw (holding the ace) has clean outs and strong implied odds. A non-nut flush draw risks making a second-best hand — that's reverse implied odds.
Board Texture
Dry boards (rainbow, unconnected) produce fewer draws and more stable hand values. Wet boards (suited, connected) create many drawing possibilities and make hand values volatile across streets.
Worked example: Q4o on 2♣ 4♥ 7♠ vs a random hand
One of the most-searched spots for this calculator is Queen-Four offsuit on a 2-4-7 rainbow flop against a single random opponent. It's a revealing example because Q4o looks like air, but on this specific flop it has more equity than most players assume.
The situation: you're holding Q♦4♠. The flop comes 2♣ 4♥ 7♠. Your opponent's range is a random hand (for learning purposes — real players aren't random).
Your equity: ~65%. Why it's higher than it looks:
- Top pair of fours. You have a pair that's ahead of 72% of unpaired hands.
- Overcard kicker. A queen beats most unpaired hands that do hit.
- Opponent rarely has a 7. Only ~12% of random hands contain a seven (three left in the deck after the 7♠) — so second pair is usually your dominated opponent's high card.
- No draws develop against you. The 2-4-7 rainbow texture is dry; no flush draws, few gutshots.
The lesson: equity is shaped by both cards in play and cards on the board. A middling hand on a dry low-card flop is often stronger than a "bigger" hand on a coordinated one. That's the gap the exploitative trainer drills — until the number is in your head before you see it on the screen.
Try it in the calculator above: enter Q♦ 4♠ for Hero, board 2♣ 4♥ 7♠, leave Villain blank (random). The numbers match.
Practice these decisions against realistic opponents
The training arena puts you in these exact spots — and teaches you to exploit them.
Frequently asked questions
How accurate is this poker equity calculator? +
The calculator uses a full enumeration or near-full Monte Carlo simulation (depending on spot complexity) and returns equity accurate to within 0.1% — the same engine used by serious training tools. Results match PokerStove, Flopzilla, and similar industry calculators.
What's the difference between hand vs hand and hand vs range equity? +
Hand vs hand gives you the percentage against one specific holding — useful for postflop shove decisions where you know or assume a specific hand. Hand vs range gives you the percentage against the entire distribution of hands your opponent could have. Range equity is what actually matters in real play, because you almost never know the exact hand.
Do I need to know equity percentages at the table? +
You don't need exact percentages — you need useful approximations. Know that a flush draw is ~36% on the flop, an open-ended straight draw is ~32%, top pair is ~75% against a random hand, and overpairs are ~80%. Most decisions collapse to four or five reference points. The calculator is where you build that intuition.
Is this poker equity calculator free? +
Yes. No signup, no account, no paywall. It runs entirely in your browser.
Can I calculate equity on a turn or river card? +
Yes — enter any board (1-5 cards) and the calculator handles postflop, turn, and river equity. All runouts are enumerated exhaustively when possible.