Keno rules and odds
Keno is a lottery-style game. The game uses the numbers 1 through 80. You choose how many numbers to play, called spots, mark them on a ticket, and the game draws 20 numbers at random. Your payout depends on how many of your spots were drawn and on the pay table for that number of spots.
How a keno game works
- Choose how many spots to play. The allowed range depends on the game.
- Mark your numbers and choose your bet.
- Twenty numbers are drawn from 80.
- Compare your matches, called catches, to the posted pay table.
The house edge
Keno pay tables vary by casino, by lottery, and by the number of spots, so there is no single figure. The Wizard of Odds describes live keno in Las Vegas as having a house edge of roughly 20 to 35 percent, which makes it one of the worst bets in a casino. Some state lotteries also sell keno-style games; their published odds and prize structures are set by each lottery.
No pattern of numbers is more likely to be drawn than another. Numbers that have not appeared recently are not "due."
Play safely, or not at all
This guide is educational. We do not offer games, accept bets, or link to casinos. In the U.S. states that currently license online casinos, you must be at least 21 and physically located in that state. Every casino game on this page has a built-in house advantage or a fee, so treat any money you play with as money you may lose. Set a budget and a time limit before you start. If gambling is causing harm, call or text the National Problem Gambling Helpline at 1-800-MY-RESET (1-800-697-3738) or see our responsible gambling help page.
Frequently asked questions
How many numbers are drawn in keno?
Twenty numbers are drawn from 1 to 80 in standard keno.
Is there a best set of keno numbers?
No. Each number has the same chance of being drawn. Pay tables, not number choices, decide the long-run cost.
Sources
See also: all game guides, where online casinos are legal, and responsible gambling help.