To open the Equity Calculator, go to Tools > Equity Calculator.
From this window you can set hands/ranges for up to 10 players, set the board cards, and calculate equities.
Along the top, set the game you are playing. Use the drop-down menu to select either Holdem, Omaha Hi, or Omaha Hi-Lo.
Then, enter the board cards. If you are running a preflop equity calculation, you can leave the board section blank.
To enter cards you can either type in specific cards (for example "6s, Kh, 4c"), or click the Board text box and then click the cards from the area down below.
You can also choose to enter Dead cards, which are helpful if any cards have been exposed (for instance, when you are playing live poker).
The next 10 text boxes represent the hand/range of each players.
You can calculate the equities of hands/ranges for as few as 2 players, and as many as 10 players.
To manually enter a hand/range, you can either type the exact cards in (such as "AsKs"), type in a range (such as "TT+", which includes TT, JJ, QQ, KK, and AA), or click the cards down below to select them.
When you've made all of your selections, click Calculate down below to see the equities appear to the right.