Free lottery tools: exact odds, real draw statistics, the arithmetic shown
Every claim on JackpotMetrics is backed by a calculation shown on the page or a linked primary source. Our lottery tools cover 97 games in 43 countries. All 25 are free, with no sign-up.
02 · Last checked October 2026
What are the real odds of winning the lottery?
Longer than most people feel. One Saturday Lotto line has a 1 in 8,145,060 chance at the jackpot, and that is the shortest of the six games below.
Most lottery odds you find online are a bare number. No working, no source, no date. Some sites go further and publish hot number lists that imply an edge the draw does not offer.
We show jackpot odds and the chance of any prize side by side, because they answer different questions. Any-prize odds look friendly. Jackpot odds are the ones the advertising is about.
Each figure is derived from the game's published rules. The full tables for every division, with the working, sit on each game's own page.
See Oz Lotto and Powerball odds
How lottery odds are calculated
Which of our lottery tools answers your question?
Start from the question you have. Each tool below answers one, shows its working and runs free in your browser.
7 Australian games
Pick your game
Oz Lotto, Saturday Lotto, Powerball, Set for Life, Weekday Windfall, Keno 10 Spot and Queensland Keno, each with its odds worked out. The full list runs to 97 games across 43 countries.
Number generator
Which numbers should I play?
The universal lottery number generator gives random lines for any of the 97 games using seven methods, from quick pick to unpopular numbers. It says plainly that no method changes the odds.
See Which numbers should I play?
Odds calculator
What are my odds, exactly?
The lottery odds calculator works out jackpot and any-prize odds from a game's published rules, with the working shown, so you can follow every step of the count.
See What are my odds, exactly?
Expected value calculator
Is a ticket worth its price?
Expected value is what a ticket returns on average over many draws. The calculator works it out for any jackpot, including tax and the chance of sharing the jackpot.
After-tax prize calculator
What would I take home?
Works out the take-home amount on a prize depending on where you live and where the game is run. Lottery prizes are tax-free for Australian residents.
Draw statistics
Do hot numbers mean anything?
The randomness tester and the frequency and z-score analyser use real draw history to show how often each number came up, and whether that count is more than chance.
How do we know these figures are right?
Three rules sit behind every number on the site. They are the reason the odds above match the operators' own tables.
Derive odds from published rules
We take each game's published rules: how many balls, how many are drawn, how many prize divisions. Then we count the possible lines with exact arithmetic. An automated test checks every result against the operator's own odds table.
Use real draw history only
Draw statistics come only from operator and government feeds, starting on the date each game's current rules began. A chi-square test checks whether the counts stray from even further than chance explains, and we report the real p-value.
Link every source
Every outside fact links to its primary source: the operator, the regulator or the tax authority. Pages that carry figures show when they were last checked. Anything that cannot be sourced stays off the site.
Every claim is backed by a calculation shown on the page or a linked primary source; anything that cannot be sourced stays off the site.
Straight answers on odds, tax and whether a ticket is worth it
Each answer uses a figure from our own data, checked against the operator's published table. We show the arithmetic and leave the decision with you.
Frequently Asked Questions
- What are the odds of winning Oz Lotto?
- Division 1, matching all 7 main numbers drawn, is 1 in 62,891,499. The chance of winning any prize is about 1 in 50. Oz Lotto draws 7 main numbers and 3 supplementaries from 47 balls, a matrix that began in May 2022 when the game moved from 45 balls to 47.
- Do hot or cold numbers improve my chances?
- No. Every ball has the same chance in every draw. Our hot-and-cold generator builds lines from real draw counts and shows those counts. Our randomness tester runs a chi-square test on the same history, so you can see for yourself whether any pattern is more than chance.
- Can a number generator change my odds?
- No, and every generator on the site says so. Each of the seven methods gives a line with exactly the same chance as any other. Unpopular numbers avoid birthdays and sequences, so if they do come up, fewer people are likely to share the prize.
- Are lottery prizes taxed in Australia?
- Income you later earn from the money, such as interest, is taxed as usual. Other countries treat prizes differently, and the after-tax prize calculator works out the take-home amount based on where you live and where the game is run.
- Is a lottery ticket ever worth buying?
- On expected value, almost never: the average return per ticket is below its price. A large jackpot can raise it, but tax and the chance of sharing the jackpot pull it back down. The expected value calculator works it out for any jackpot you enter.
- Which Australian lotto has the best jackpot odds?
- Of the national draws, Saturday Lotto and Weekday Windfall have the shortest jackpot odds at 1 in 8,145,060. Set for Life is 1 in 38,320,568, Oz Lotto 1 in 62,891,499 and Powerball 1 in 134,490,400.
- Are the tools free?
- Yes. All 25 tools are free, run in your browser and need no account. There is no paid plan and nothing to sign up for.
Found a figure that disagrees with its source? Tell us.
We check every reported error against the primary source and fix what is wrong. Questions about any of the lottery tools are welcome too.