Need more than the web tool?
Poker Equity & Odds is the same math in an app. It works offline, you build ranges on a 13×13 grid, and a trainer has you guess the equity before it shows the real number.

Free tool
Pick exact cards, a range, or random for each player. Set any flop, turn, or river. Equity updates live with street-by-street breakdown and made-hand distribution.
Iterations: 0
13×13 matrix, a Top % slider, or a position preset.
0 combos· 0.0% of 1,326
Presets
Equity in poker is your share of the pot: the percentage of the time your hand wins if every remaining card is dealt and nobody folds. Pocket aces have roughly 82% equity against pocket kings preflop, so AA wins about 82 times out of 100 (see Poker probability on Wikipedia). Equity changes on every street as the board comes out, and pot odds, expected value and GTO decisions are all built on it. Use the calculator above to get exact equity for any hand vs hand, hand vs range or range vs range matchup.
Pick a mode for each player. Exact means two specific hole cards. Range lets you select a weighted set of hands with the 13×13 matrix, the Top % slider or a preset like EP open or BB defend. Random uses all 1,326 combos, which is what you want when you have no read on villain at all.
Add a flop, turn or river to see how equity moves street by street. The equity-over-streets graph shows you where a strong flop loses value on a blank turn, a spot many players never check.
Once you know your equity, compare it with the pot odds you are getting. If villain bets half pot, you call 0.5 into a final pot of 2 (the pot, his bet and your call), so you need 0.5 / 2 = 25% equity to call. With a flush draw on the turn you have 9 outs among 46 unseen cards, so you hit on the river 9 / 46 ≈ 20% of the time. You need a price that matches. Put equity, pot odds and outs together and you have the maths behind every postflop call.
Equity is the share of the pot your hand wins on average if every remaining card is dealt and nobody folds. AA has about 82% equity against KK preflop. You compare equity with pot odds to see whether a call breaks even, and it is the input to every EV calculation.
Yes. The Poker Academy equity calculator is 100% free with no sign-up required, runs entirely in your browser, and supports up to nine players.
Yes. Each player row has a toggle for Exact cards, a Range (13×13 matrix plus a Top X% slider and position-based presets) or Random. Mix modes freely, for example Hero on AKs against an Opponent on the EP open range.
Yes. On phones the card picker opens as a bottom-sheet and the 13×13 matrix scales to the screen. Everything runs client-side, so it works offline once the page is loaded.
When every player has exact cards, results are exact: the calculator enumerates every remaining board. When ranges are involved, a 500,000-iteration Monte Carlo simulation keeps the noise below roughly ±0.5%.
Yes. Click Share and a URL with the whole board, the ranges and the player modes is copied to your clipboard. Anyone who opens the link lands on exactly the same spot.

Equity Calculator