How to Play Keno

  1. Choose how many numbers to pick ("spots") – usually between 1 and 10, sometimes up to 15 or 20.
  2. Pick your numbers from 1 to 80, or use Quick Pick for random numbers.
  3. Set your stake and the number of consecutive draws.
  4. Watch the draw. Twenty numbers are drawn at random.
  5. Get paid according to the paytable for the number of spots you picked and how many you matched ("catches").

Keno Odds by Number of Spots

Here are the chances of matching every number you pick in standard 20-from-80 keno:

Spots pickedOdds of catching all
11 in 4
21 in 16.6
31 in 72
41 in 326
51 in 1,551
61 in 7,753
71 in 40,980
81 in 230,115
91 in 1,380,688
101 in 8,911,711

Picking more numbers increases the top prize but makes it far harder to hit. Paytables reward partial matches – for example catching 5 of 8 – so check what each ticket pays before you play.

Keno House Edge

Keno has a higher house edge than most casino games. In land-based venues it is often 20% or more. Online keno varies widely between games and casinos, so look for the RTP in the game's information screen and choose versions with a higher return.

Keno Myths

MythReality
"Hot" numbers come up more oftenEvery draw is independent – past results don't affect future ones
"Cold" numbers are dueA number that hasn't appeared isn't more likely next time
Consecutive numbers are luckierAll combinations have exactly the same probability
Picking more spots is always betterIt raises the top prize but lowers your chance of any big win

Tips for Playing Keno

  • Compare paytables and RTP between keno games – they differ a lot.
  • Choose a number of spots that matches your goal: fewer spots for more frequent wins, more spots for jackpot chances.
  • Play the free version first to understand the paytable.
  • Keno draws are fast online, so set a budget and a time limit.
  • Only play at licensed casinos with certified random number generators.

A Short History of Keno

Keno is often said to come from an ancient Chinese lottery, although the details of its origins are uncertain. Chinese immigrants brought a lottery game to the United States in the 19th century, where it evolved into modern keno, legalised in Nevada casinos in the 1930s. Today it is played in casinos, bars and online. Read more in our keno winner's guide.

Posted by Joshua Mau
Gaming Mathematician

Joshua Mau's excellent knowledge of number theory and random number generators led him to an advisory role with leading slot machine providers. In his articles he explains the structure and mechanics of casino games – the maths behind RTP, house edge and odds – in a way anyone can understand.

Visit the author's page
FAQ
How many numbers should I pick in keno?

There is no best number. Fewer spots give more frequent small wins; more spots give a bigger top prize but much lower odds of hitting it. Compare the paytables.

Are some keno numbers drawn more often?

No. Each draw is random and independent. "Hot" and "cold" numbers have no effect on future draws.

What are the odds of winning keno?

It depends on how many numbers you pick. Picking 1 number gives a 1 in 4 chance; matching all 10 of 10 is about 1 in 8.9 million.

What is the house edge in keno?

Keno usually has a high house edge – often 20% or more in land-based venues. Online versions vary, so check the RTP.

Can I play keno for free?

Yes. Many online casinos offer demo keno so you can learn the game without risking money.

How many numbers are drawn in keno?

In standard keno, 20 numbers are drawn from 1 to 80 in each game.