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AU

Oz Lotto Odds Explained

Every lottery ticket buys you one shot at every combination. Here's the full mathematical breakdown of your chances for every Oz Lotto prize tier — and honest context on what those numbers actually mean.

Jackpot odds

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Total combinations

About 62.9 million

62,891,499

Overall win odds

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any prize, any tier

How the maths works

Lottery odds come from combinatorics — counting how many ways you can choose a subset of numbers from a pool. The formula is:

C(n, r) = n! / (r! × (n − r)!)

where n = pool size, r = numbers to choose

For Oz Lotto, you pick 7 numbers from 1–47 (a pool of 47 numbers):

C(47, 7) = 47! / (7! × 40!) = 62,891,499 combinations

Each ticket covers exactly one combination, so your jackpot odds are 1 in 62,891,499 — which matches the official published odds.

Frequently asked questions

What are the odds of winning the Oz Lotto jackpot?
The jackpot odds for Oz Lotto depend on the prize pool and draw rules. See the full prize table above for the exact figures.
How are Oz Lotto odds calculated?
Oz Lotto odds are calculated using combinatorics — specifically the combination formula C(n,r) = n! / (r! × (n-r)!). You pick 7 numbers from 1–47, giving C(47,7) = 62,891,499 combinations. The total is 62,891,499 possible outcomes.
Does buying more Oz Lotto tickets improve my odds?
Yes — each additional ticket gives you one extra combination. If the jackpot odds are 1 in N and you buy 10 tickets, your odds become roughly 10 in N, or 1 in N/10. That said, even 10 tickets still leaves you with an astronomically small chance of winning the jackpot.
What are the best numbers to pick for Oz Lotto?
There are no "best" numbers. Every combination has an identical probability of being drawn. Quick picks (random numbers) are statistically equivalent to any hand-picked combination. This generator uses cryptographically strong randomness so your picks are as random as possible.
What is the overall chance of winning any prize in Oz Lotto?
The overall odds of winning any prize depend on the number of prize tiers. See the full prize table for details.

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