Equity
Equity is your share of the pot if the hand were played to showdown with no more betting.
Equity is given as a percentage. Ace-king suited against a pair of queens before the flop has about 46%: over many deals it wins a little less than half the pot.
You rarely know the exact hand you face, so equity is usually measured against a range, all the hands your opponent could hold. That figure is the one to compare with your pot odds.
Work it out
Equity calculator: Pick your hand and the board, and enter your opponent's hand or range. The calculation runs in your browser.
Related terms
Practise decisions like this in the trainer: ten hands at a time, with the answer and the reason.