Tools
We built the calculator below because we wanted one that covers the games we play, says how sure it is, and keeps what you type on your own device. It's the only tool here.
Poker equity calculator
Equity for Hold'em, Omaha with 4, 5 or 6 cards (high, and Hi/Lo 8-or-better) and Seven Card Stud (high and Hi/Lo 8-or-better). It gives an exact answer when it can count every deal, and a labeled estimate when it can't.
Disclaimer
Poker equity calculator (educational). This tool shows each hand's equity: the share of the pot it would win on average if all the remaining cards were dealt with no more betting. It uses only the cards you enter and treats every unknown card as equally likely. It ignores betting and how anyone plays, and it cannot tell you what will happen in a hand or what to do. “Exact” results count every possible deal. “Simulated” results are estimates; the plus-or-minus figure means each player's true value is very likely (95% confidence) within that range. Nothing you enter leaves your device. Many card rooms and poker sites do not allow calculators during a hand; check their rules.