Keno Odds Calculator: Find Out the Probability of Winning

In a game as unpredictable as Keno, understanding the probabilities involved is crucial. This ancient game, with roots tracing back to China, has become a staple in both online and land-based casinos.

It’s simple to play Keno, and can be surprisingly rewarding. But what are the real probabilities in a Keno game, and how can you use this knowledge to your advantage?

Keno Odds Calculator


Chance of Winning: 0%

Odds of Winning: 1 in 0

How to use the calculator

  • Enter the number of balls in the drawing for your favorite keno game (eg: if it’s a 20/80 keno, enter 80)
  • Enter the number of balls that are drawn (eg: if it’s a 20/80 keno, enter 20)
  • Enter the numbers you selected (eg: if you pick 10 numbers, enter 10)
  • Press the Calculate Odds button
  • the chance of matching all the numbers you selected will be displayed (eg: if you pick 3 numbers for a 20/80 keno game, the chance of winning will be 1.39%)
  • the odds of winning displays the probability but in a different format, as 1 in X tickets (eg: for 3 numbers for a 20/80 keno game, the odds are 1 in 72 tickets)

Table of Contents

The Mathematics Behind Keno: Calculating the Odds

Keno is a game of numbers, and like all number games, it’s ruled by probabilities.

The basic premise is simple: you pick a set of numbers, usually between 1 and 20, from a pool of numbers between 1 and 80.

After you make your selection, 20 numbers are drawn randomly. Your winnings are based on how many of your selected numbers match the drawn numbers.

The more matches, the bigger the win. But what are the actual odds of hitting all your numbers?

In Keno, combinations play a significant role.

For example, the probability of hitting all 20 numbers is so astronomically low (1 in 3,535,316,142,212,172,288) that it’s virtually zero. It’s important to understand these odds when deciding how many numbers to play. Playing more numbers increases your potential winnings but decreases your odds of hitting all your numbers.

Is There a Winning Formula for Keno?

Keno is, at its core, a game of luck. But does that mean strategies are irrelevant? Not necessarily. While no strategy can change the inherent probabilities in a Keno game, understanding these probabilities can help you make smarter bets.

We discuss how understanding the probabilities in a Keno game can guide players in deciding how many numbers to play. For instance, choosing fewer numbers can offer more frequent, smaller wins, while picking more numbers can result in larger wins but less frequently.

Also check out my best keno numbers guide.

The House Edge in Keno

No casino game is complete without discussing the house edge. In Keno, the house edge can be significant, often ranging from 20% to 35%. This is higher than many other casino games, and understanding this is crucial for any player.

The Psychological Aspect of Playing Keno

Keno’s probabilities might not always be in the player’s favor, but the game remains immensely popular. It’s the thrill of the potential for a big win, the simplicity of the game, and the joy of watching those numbers pop up that keeps players coming back.

Many players fall into the trap of the Gambler’s Fallacy when playing Keno. This is the belief that past results affect future outcomes in a game of pure chance. Each game of Keno is independent of the last, and understanding this is key to maintaining a rational approach to the game.

Final Thoughts

In the end, Keno is a game of chance, but understanding the probabilities involved can lead to a more enjoyable and informed gaming experience. It’s not just about picking numbers and hoping for the best. It’s about understanding the risks, managing your expectations, and enjoying the game for what it is – a fun, exciting, and potentially rewarding form of entertainment.


  • Theo Quinten

    With over a decade of dedicated experience, Theo Quinten stands as a prominent figure in the world of Keno. His journey began more than 10 years ago, when he discovered his passion for this classic game of chance. Since then, Theo has devoted himself to mastering the intricacies of Keno, studying patterns, probabilities, and strategies with a rigor that sets him apart from his peers. Recognizing the lack of comprehensive, reliable resources for aspiring Keno players, he is the creator of the Keno Academy with a singular vision: to create a hub of knowledge, strategy, and community for Keno enthusiasts around the world. Theo’s authority in the field is not just a product of his extensive experience; it is also validated by his commitment to education and mentorship. His articles are celebrated for their clarity, depth, and actionable advice, earning him a reputation as a trusted voice in the Keno community. Theo is known for his integrity and ethical approach to gaming. He advocates for responsible play and is a vocal supporter of gambling education and prevention programs. His advocacy work, combined with his transparent and ethical business practices, underscores the trustworthiness that is a hallmark of both his personal brand and the Keno Academy.

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