Compare spot counts, calculate payouts, understand odds, and find the best keno options for your state or play style.
Free calculators and comparison tools built on real keno mathematics.
Calculate the exact probability of hitting X matches out of Y spots using hypergeometric distribution. See "1 in X" odds for every scenario.
Calculate OddsEnter your bet and spot count to see expected returns. Compare paytables across Generic Casino, Massachusetts, and Ohio keno.
Calculate PayoutsSide-by-side comparison of 4-spot, 6-spot, 8-spot, and 10-spot keno. See variance, jackpot odds, and best-fit play style.
Compare SpotsQuick guides that cut through the noise and get you playing with confidence.
A beginner-friendly explanation of how spots work, what picking numbers means, and why spot count changes your odds dramatically.
Read GuideLottery keno and video keno have key differences in speed, paytables, and house edge. Here's what you need to know before you play.
Read GuideLearn to read any keno pay table, understand return-to-player percentages, and calculate expected value for each bet you make.
Read GuideJump straight to what matters most to you.
Free probability and payout tools for any spot count
Paytables, draw times, and tips for your state's lottery
Machine formats, speed of play, and what to expect
Online keno explained — RNG, variations, and more
Hitting all your numbers gets exponentially harder as you pick more spots — but so does the payout.
| Spot Count | Odds of Hitting All Spots | Typical Max Payout | Variance | Best For |
|---|---|---|---|---|
| 4-spot | 1 in 326 | $120 | Low | Beginners, casual play |
| 5-spot | 1 in 1,551 | $800 | Low-Medium | Balanced players |
| 6-spot | 1 in 7,753 | $1,500 | Medium | Most popular choice |
| 8-spot | 1 in 230,115 | $15,000 | High | Jackpot seekers |
| 10-spot | 1 in 8,911,711 | $100,000 | Very High | Max jackpot play |
Choose between 1 and 10 numbers from a field of 1–80. These are your "spots."
20 numbers are drawn at random from 1–80. You win based on how many of your numbers match.
Match enough numbers and you win. The paytable tells you exactly what each match count pays.
No spam. Just helpful breakdowns of odds, paytable comparisons, and smarter ways to play.
Lottery keno rules, paytables, and draw times vary by state. Find yours.