Australia Powerball Odds Explained
Every lottery ticket buys you one shot at every combination. Here's the full mathematical breakdown of your chances for every Australia Powerball prize tier — and honest context on what those numbers actually mean.
Jackpot odds
1 in 134,490,400
Total combinations
About 134.5 million
134,490,400
Overall win odds
1 in 66
any prize, any tier
All Prize Tiers & Odds
Every official prize tier for Australia Powerball, with context on what those odds actually look like.
| Tier | Numbers to match | Odds | Typical prize |
|---|---|---|---|
| JackpotDivision 1 | 7 + Powerball | 1 in 134,490,4002× more likely than the chance of being struck by a meteorite in your lifetime | Jackpot (can reach AUD $100M+) |
| Division 2 | 7 | 1 in 7,059,052about as likely as dying from a wasp or bee sting | Varies by draw |
| Division 3 | 6 + Powerball | 1 in 686,176about as likely as being dealt a royal flush on your first poker hand | Varies by draw |
| Division 4 | 6 | 1 in 36,1154× more likely than the chance of finding a four-leaf clover on your first try | Varies by draw |
| Division 5 | 5 + Powerball | 1 in 16,9432× more likely than the chance of finding a four-leaf clover on your first try | Varies by draw |
| Division 6 | 4 + Powerball | 1 in 1,1735× more likely than the chance of having identical twins | Varies by draw |
| Division 7 | 5 | 1 in 8924× more likely than the chance of having identical twins | Varies by draw |
| Division 8 | 3 + Powerball | 1 in 1886× more likely than the chance of flipping heads 5 times in a row | Varies by draw |
| Division 9 | 2 + Powerball | 1 in 662× more likely than the chance of flipping heads 5 times in a row | Varies by draw |
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 Australia Powerball, you pick 7 numbers from 1–35 (a pool of 35 numbers):
Then you also pick 1 Powerball number from 1–20 (a separate pool of 20 numbers):
Since the two draws are independent, multiply them together:
Each ticket covers exactly one combination, so your jackpot odds are 1 in 134,490,400 — which matches the official published odds of 1 in 134,490,400.
Does buying more tickets help?
Yes — but the improvement is smaller than you might think. Each ticket adds one independent combination to your entry. With n tickets, your jackpot odds become n in 134,490,400:
| Tickets | Jackpot odds | Approximate cost |
|---|---|---|
| 1 | 1 in 134,490,400 | ~$2 USD |
| 5 | 1 in 26,898,080 | ~$10 USD |
| 10 | 1 in 13,449,040 | ~$20 USD |
| 50 | 1 in 2,689,808 | ~$100 USD |
| 100 | 1 in 1,344,904 | ~$200 USD |
Frequently asked questions
- What are the odds of winning the Australia Powerball jackpot?
- The odds of winning the Australia Powerball jackpot are 1 in 134,490,400. That means for every ticket you buy, you have a 1 in 134,490,400 chance of matching all numbers correctly.
- How are Australia Powerball odds calculated?
- Australia Powerball odds are calculated using combinatorics — specifically the combination formula C(n,r) = n! / (r! × (n-r)!). You pick 7 numbers from 1–35, giving C(35,7) = 6,724,520 combinations, multiplied by C(20,1) = 20 for the Powerball ball. The total is 134,490,400 possible outcomes.
- Does buying more Australia Powerball tickets improve my odds?
- Yes — each additional ticket gives you one extra combination. If the jackpot odds are 1 in 134,490,400 and you buy 10 tickets, your odds become roughly 10 in 134,490,400, or 1 in 13,449,040. 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 Australia Powerball?
- 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 Australia Powerball?
- The overall odds of winning any prize in Australia Powerball are approximately 1 in 66, which accounts for the lowest prize tier. Most prizes are small fixed amounts rather than the jackpot.
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