What are the odds of matching all numbers in Keno?

The odds depend on the number pool size, how many numbers are drawn, and how many you pick. For a standard 80/20 game picking 10 numbers, the odds of matching all 10 are approximately 1 in 8,911,711.

How is Keno probability calculated?

Keno uses the hypergeometric distribution. The probability of catching k numbers when picking s from a pool of N with D drawn is: C(D,k) × C(N-D, s-k) / C(N,s), where C is the combination function.

Keno typically has a house edge of 25-40%, making it one of the higher house-edge lottery games. The expected return varies by operator and game format. Always check the specific pay table for the game you are playing.

Keno 機率計算器

Keno 機率計算器: Keno 號碼, 開獎, 機率.

遊戲

號碼

遊戲

號碼80

開獎20

號碼5

資訊 →

Odds Table — Happy Keno (快乐8) (5-Spot)

80/20 pool

Matches	機率	Keno 機率計算器	%
0 of 5	0.22718421	1 in 4.40	22.7184%
1 of 5	0.40568609	1 in 2.46	40.5686%
2 of 5	0.27045739	1 in 3.70	27.0457%
3 of 5	0.08393505	1 in 11.9	8.3935%
4 of 5	0.01209234	1 in 82.7	1.2092%
5 of 5Jackpot	0.00064492	1 in 1,551	0.0645%

機率 — 5-Spot

0/5

22.7184%

1/5

40.5686%

2/5

27.0457%

3/5

8.3935%

4/5

1.2092%

5/5

0.0645%