Understand the numbers
What does “1 in” actually mean?
A draw result tells you what happened. Probability describes the possible results before a draw. Use the calculator to explore one full combination at a time, then return to the result history or calendar.
Explore a complete-match probability
Choose a game to see how many different full results its number matrix allows. Start with one combination; the optional comparison counts distinct combinations within the same draw.
Repeating the same complete combination does not cover another outcome. This comparison is not a recommendation to enter more lines.
EuroMillions · One draw
1 out of 139,838,160 possible results
1 in 139,838,160 · 0.000000715112% chance of matching the full combination.
How the count is built: 2,118,760 unordered main-number combinations × 66 separate bonus-number combinations. This assumes every valid full result is equally likely.
One combination, one full result
The figures below count a complete match, including the required separate bonus numbers. They do not describe the chance of winning any prize or a guaranteed return.
| Game and scope | Number matrix | One-combination chance |
|---|---|---|
| EuroMillions One draw | 5 from 50 + 2 Lucky Stars from 12 | 1 in 139,838,160 |
| Thunderball One draw | 5 from 39 + 1 Thunderball from 14 | 1 in 8,060,598 |
| Set For Life One draw | 5 from 47 + 1 Life Ball from 10 | 1 in 15,339,390 |
| Powerball UK One shared draw | 5 from 69 + 1 Powerball from 26 | 1 in 292,201,338 |
| Lotto — one round One round only | 6 from 59; Bonus Ball is not needed to match all six | 1 in 45,057,474 |
Order does not matter within a set of main numbers. For example, the five EuroMillions main numbers can form 2,118,760 different sets. Its two Lucky Stars add 66 possible pairs: 2,118,760 × 66 = 139,838,160 complete results.
Keep Lotto rounds and HotPicks separate
Lotto now has two rounds under the June 2026 licence change. The Lotto figure here applies to a single round. We do not present it as the combined chance across both rounds.
HotPicks has separate conditions for the number of picks selected. The full-combination count of the parent draw is not a HotPicks win probability. This calculator does not model HotPicks prize tiers.
Lotto HotPicks results · EuroMillions HotPicks results · Official game licences
History is a record, not a forecast
For a fair independent draw, a number appearing frequently or not appearing recently does not make it more likely next time. A favourite combination has the same complete-match probability as any other valid combination in that draw.
The optional distinct-combination comparison divides the number of different full combinations by the total number of possible results. It models a single draw or Lotto round, not repeat drawings over time. Repeating an identical combination does not create another possible outcome.
Use the calendar to find a date, or return to the latest recorded results. The calculation does not check a ticket, value a prize or recommend spending.
Number rules and calculation sources
The Lotto, EuroMillions, Thunderball and Set For Life number matrices come from The National Lottery’s game information. The UK Powerball matrix is confirmed in Allwyn’s UK launch explanation. The counts displayed here are calculated from those matrices using combinations; they are not prize forecasts.
Different games have different prize structures. A comparison of complete-match probabilities does not compare value, ticket prices or the chance of any smaller prize. Check the operator’s current rules before relying on a prize claim.