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🇦🇺 Oz Lotto · free · cryptographically fair

Oz Lotto number generator

Pull truly random Oz Lotto lines in one tap — 7 numbers from 1–47. Generate up to 10 lines, copy any with a tap. Runs entirely in your browser; nothing is sent to a server.

7 / 47
Game format
1 in 62,891,499
Division 1 odds
AU$1.35
Per game
Tuesday
Draw, ~8:30pm AEST

Generate your numbers

Every line uses crypto.getRandomValues with rejection sampling, so each number is exactly equally likely — no bias, no shortcuts.

Lines
1
💡 How it works: pick 7 numbers from 1–47. On Tuesday night 10 balls are drawn — your 7 winning numbers plus 3 supplementary numbers. You only choose the 7; the supplementaries are drawn by the machine and just unlock the lower divisions. Match all 7 for Division 1 — and you can still win the lowest division with as few as 3 numbers + 1 supplementary.
Why this generator

Fair by maths, private by design

Many online pickers lean on Math.random(), which isn't built to be unpredictable. Ours uses your device's cryptographically-secure randomness — the same class trusted for encryption keys — and we use rejection sampling so no number is quietly favoured over another. Your picks are made on your device and never transmitted anywhere.

Worth saying plainly: a generator can't predict a draw or improve your odds. Every Oz Lotto combination always has exactly the same chance — 1 in 62,891,499 for Division 1. What this gives you is a clean, unbiased, genuinely random line, free of the human habit of clustering around birthdays and patterns (which only matters for how a jackpot would be split, never for whether you win).

🔐 Want provably-fair numbers? Members unlock the SHA-256 entropy edition across every game — you seed the draw yourself by moving your mouse, and each line comes with a verifiable hash receipt.
See membership →
Lottery odds compared 📊 All generators ✨
FAQ

Questions, answered

How does the Oz Lotto generator work?
It picks 7 unique numbers from 1 to 47 using your device's cryptographically-secure random generator (crypto.getRandomValues) with rejection sampling, so every number is equally likely. Generate multiple lines and copy each with one tap. You don't pick the 3 supplementary numbers — they're drawn by the machine.
What is the Oz Lotto format and price?
Oz Lotto, run by The Lott, is 7 numbers from 1–47 at about AU$1.35 per game. Drawn every Tuesday night (~8:30pm AEST): 7 winning numbers + 3 supplementary numbers from 47 balls. Division 1 (all 7) is 1 in 62,891,499; overall any-prize odds are about 1 in 51. Winnings are tax-free in Australia.
What are the supplementary numbers?
After the 7 winning numbers, 3 extra “supplementary” numbers are drawn from the same barrel of 47. You don't choose them — they only count toward certain lower divisions (the lowest prize needs 3 winning numbers plus 1 supplementary). Division 1, the jackpot, is purely your 7 main numbers.
Can a generator improve my chances of winning?
No. Oz Lotto is a game of pure chance and every combination always has exactly the same probability. A generator simply gives you a fair, unbiased random line — handy mainly because it avoids the birthday-and-pattern clustering that makes a shared jackpot more likely to be split.
Are my generated numbers private?
Yes. The generator runs entirely in your browser. Your numbers are never sent to a server and no sign-up is required.

Play for fun, play responsibly

Oz Lotto is a game of pure chance, run by The Lott. This generator produces random combinations only — it does not predict draws or improve your odds, and every combination is equally likely. Numbers are for entertainment; The Lott is the only source that confirms a result or prize. Australian lottery winnings are paid tax-free.

Play responsibly and only spend what you can afford to lose. You must be 18+ to play. Support: Gambling Help Online (1800 858 858).
How does Oz Lotto stack up?
Oz Lotto’s real winning odds & statistics → Compare Oz Lotto with the world’s 18 biggest →