UK Lottery Odds Calculator | Prize Tiers & Jackpot Odds
Choose a UK National Lottery game to calculate every prize tier or any-prize odds for one line, or jackpot odds for several different lines. Include repeated draws, compare ticket costs, and see how duplicate entries affect jackpot coverage.
Fewest combinations
Thunderball
8,060,598 full top-prize combinations.
Largest combination pool
Powerball
292,201,338 full top-prize combinations.
UK Lotto format
Two Lotto rounds
The same entered line has two top-prize chances in a current draw.
Key rule
Unique lines matter
Repeated extra lines do not cover more combinations.
Line prices used
Estimated ticket cost
Lotto £2, EuroMillions £2.50, Set For Life £1.50, Thunderball £1 and Powerball £4 per line.
Prize-tier and jackpot odds calculator
Choose Prize-tier odds for one line per draw, or Jackpot: multiple lines for different complete lines. Both modes calculate the chance across your chosen number of draws and the total ticket cost.
Compare prices and odds across all five games
Each row is for one line in one complete paid draw. Any-prize odds include all paying match outcomes for that game. Top-prize odds cover the full winning combination.
| Game | Line price | Any-prize odds | Top-prize odds |
|---|---|---|---|
| UK LottoBoth rounds included | £2.00 | About 1 in 4.8820.49566% | About 1 in 22,528,7370.000004438775% |
| EuroMillions | £2.50 | About 1 in 12.977.707975% | 1 in 139,838,1600.0000007151124% |
| Set For Life | £1.50 | About 1 in 12.418.059056% | 1 in 15,339,3900.000006519164% |
| Thunderball | £1.00 | About 1 in 12.388.075207% | 1 in 8,060,5980.00001240603% |
| UK Powerball | £4.00 | About 1 in 13.187.586049% | 1 in 292,201,3380.0000003422298% |
Lotto includes both rounds for one £2 line. EuroMillions any-prize odds cover main-game prizes only and exclude the separate UK Millionaire Maker raffle. Figures are rounded. The table always compares one line in one draw, regardless of the calculator settings above.
Repeated line impact calculator
If one planned line appears more than once, the useful coverage is based on unique lines, not total entries. Enter the size of the repeated group: for A, A and B, the repeated group size is 2 and the useful coverage is 2 unique lines.
- Calculate prize-tier or jackpot odds
- Compare one-line prices and odds
- Repeated line impact calculator
- Combination totals by game
- Top-prize chance by number of unique lines
- Which game has the fewest combinations?
- How the percentages are calculated
- Why unique lines matter between players
- Check official rules before playing
- Responsible use
Combination totals by game
UK Lotto
45,057,474 possible 6-number combinations per result round.
6 main numbers from 1 to 59. The current Lotto draw has two rounds, each with its own Bonus Ball.
Estimated line price: £2.00.
EuroMillions
139,838,160 possible top-prize combinations.
5 numbers from 1 to 50 + 2 Lucky Stars from 1 to 12.
Estimated line price: £2.50.
Set For Life
15,339,390 possible top-prize combinations.
5 numbers from 1 to 47 + 1 Life Ball from 1 to 10.
Estimated line price: £1.50.
Thunderball
8,060,598 possible top-prize combinations.
5 numbers from 1 to 39 + 1 Thunderball from 1 to 14.
Estimated line price: £1.00.
Powerball
292,201,338 possible top-prize combinations.
5 numbers from 1 to 69 + 1 Powerball from 1 to 26.
Estimated line price: £4.00.
Which supported lottery has the fewest top-prize combinations?
Among the supported games on this page, Thunderball has the fewest full top-prize combinations at 8,060,598. Set For Life has 15,339,390, UK Lotto has 45,057,474 possible six-number combinations per result round, EuroMillions has 139,838,160, and Powerball has 292,201,338.
A smaller combination total means the full top-prize combination is less rare mathematically, but it does not mean a player is likely to win or that the game is better value. Prize structures, ticket cost and official rules are separate issues.
Top-prize chance by number of unique lines
The table assumes every line is unique in the same draw. This is the important part for groups of players: if two players choose the same line, the second copy is only a repeated extra line and does not cover another combination.
For UK Lotto, 45,057,474 is the number of possible six-main-number combinations in one result round. Under the current two-round format, the same entered line is checked against two separate sets of winning numbers in each draw.
| Game | Number selection | Combination formula | Total combinations | Line price | 1 unique line | 7 unique lines | 14 unique lines | 21 unique lines |
|---|---|---|---|---|---|---|---|---|
| UK Lotto | 6 numbers from 1 to 59 | C(59,6) | 45,057,474 per result round |
£2.00 | 0.00000444% about 1 in 22,528,737 | 0.0000311% about 1 in 3,218,391 | 0.0000621% about 1 in 1,609,196 | 0.0000932% about 1 in 1,072,797 |
| EuroMillions | 5 numbers from 1 to 50 + 2 Lucky Stars from 1 to 12 | C(50,5) × C(12,2) | 139,838,160 | £2.50 | 0.000000715% 1 in 139,838,160 | 0.00000501% 1 in 19,976,880 | 0.0000100% 1 in 9,988,440 | 0.0000150% 1 in 6,658,960 |
| Set For Life | 5 numbers from 1 to 47 + 1 Life Ball from 1 to 10 | C(47,5) × 10 | 15,339,390 | £1.50 | 0.00000652% 1 in 15,339,390 | 0.0000456% 1 in 2,191,341 | 0.0000913% 1 in 1,095,671 | 0.0001369% 1 in 730,447 |
| Thunderball | 5 numbers from 1 to 39 + 1 Thunderball from 1 to 14 | C(39,5) × 14 | 8,060,598 | £1.00 | 0.0000124% 1 in 8,060,598 | 0.0000868% 1 in 1,151,514 | 0.0001737% 1 in 575,757 | 0.0002605% 1 in 383,838 |
| Powerball | 5 numbers from 1 to 69 + 1 Powerball from 1 to 26 | C(69,5) × 26 | 292,201,338 | £4.00 | 0.000000342% 1 in 292,201,338 | 0.000002396% 1 in 41,743,048 | 0.000004791% 1 in 20,871,524 | 0.000007187% 1 in 13,914,349 |
How the percentages are calculated
For one-round games, the chance of matching the top-prize combination with unique lines is:
number of unique lines ÷ total combinations × 100
For the current two-round UK Lotto format, the draw-level chance is:
1 - (1 - unique lines ÷ 45,057,474)²
Example: UK Lotto has 45,057,474 possible combinations per result round. With 7 unique lines and two rounds, the top-prize chance is about 0.0000311%, or about 1 in 3,218,391.
Why unique lines matter between players
Lottery-Checker cannot improve the official odds of any lottery line. What it can do is help players organise planned lines and reduce accidental duplication inside the shared planner.
If 21 planned entries contain one repeated group of 6 matching entries, that group contributes only 1 unique line, so the useful coverage is 16 unique combinations. The percentages in the table only apply to the number of unique lines actually covered, not the number of repeated planned entries.
Someone else choosing your numbers does not change your line's chance of matching the draw. The shared board cannot establish how many official tickets share a combination. Count unique lines within your own or your syndicate's entries when calculating combined jackpot coverage.
Check official rules before playing
Lottery game rules, number ranges and prize structures can change. This page is designed as a planning guide only. Before buying any real ticket, always check the latest official rules and draw information from the official lottery operator.
Responsible use
Lottery games are chance-based. More unique lines cover more combinations, but the top-prize chance remains very small. Only play if you are 18 or over, only spend what you can afford to lose, and always use official authorised channels for real tickets and official results.
Related pages
Keep moving: open a checker, compare one game in detail, or read why repeated planned lines reduce useful coverage.
Frequently asked questions
How many UK lottery combinations are there?
The supported games on this page have these full top-prize combination totals: Thunderball has 8,060,598. Set For Life has 15,339,390. UK Lotto has 45,057,474 per result round. EuroMillions has 139,838,160. Powerball has 292,201,338.
Are these the chances of winning any prize?
Select Prize-tier odds, then Any prize, to calculate the chance of a winning match outcome for one line per draw. You can also choose a specific prize tier. The separate jackpot mode and unique-line tables cover only the full top-prize match.
What do exactly and at least once mean?
An exact match outcome fixes the number of main matches and the stated special-ball condition in one round. For example, exactly 3 main matches does not include 4 or 5 main matches.
At least once across 10 draws means that the selected exact outcome occurs one or more times during those draws. It does not include outcomes with more matching numbers. The calculator does not calculate a separate chance of matching at least a chosen number of balls.
Any prize combines all paying match outcomes instead of selecting one exact outcome. UK Lotto includes two separate rounds in each paid draw, so the selected outcome can occur in either round.
Why do unique lines matter between players?
If players repeat the same combination, they do not cover an extra combination. Unique lines help a group cover more different combinations.
Does 21 unique lines give 21 times the chance of 1 line?
For the jackpot in one result round, 21 different full lines cover 21 times as many possible winning combinations as one line. Across both Lotto rounds, or repeated draws, use the calculator’s at-least-once formula. Lower-prize chances across multiple lines depend on shared numbers and cannot be calculated from a line count alone.
Does avoiding duplicate lines improve the odds of one ticket?
No. It does not change the odds of any individual ticket. It only helps players avoid covering the same combination twice inside their planning.
Which lottery has the fewest possible top-prize combinations?
Among the games compared on this page, Thunderball has the fewest full top-prize combinations, with 8,060,598.
Can I calculate the odds for any number of lines?
Yes. Choose Jackpot: multiple lines, select a game, and enter your number of different complete lines and draws. Prize-tier mode is limited to one line per draw because overlapping numbers between lines affect combined lower-prize probabilities.
What happens if two players choose the same line?
If two players choose the same full combination, the first copy still counts as one unique line. Only the extra repeated copy fails to add coverage.
Probability formulas and assumptions
Prize-tier mode calculates exact single-line match probabilities, then combines independent draws to find the chance of that result at least once. Jackpot mode calculates the chance of matching the full top-prize numbers with different complete lines. C(n, k) = n! / (k! × (n - k)!) counts ways to choose k distinct numbers from n when their order does not matter.
Exactly m main matches: P = C(k, m) × C(n - k, k - m) / C(n, k)
A selected outcome at least once across d independent draws: P = 1 - (1 - p)d
Here n is the main-ball pool size, k is the number of main balls selected, and p is the outcome probability in one draw. For games with independent special-ball pools, multiply by the appropriate special-ball probability. Lotto’s Bonus Ball comes from the remaining main-pool numbers and is handled conditionally. Any-prize odds sum mutually exclusive winning outcomes within a result round.
Each current Lotto entry covers two independent result rounds. For a tier with per-round chance q, the chance of it appearing at least once across d Lotto draw nights is 1 - (1 - q)2d. The calculator distinguishes one round from one complete draw. The £2 line price covers both rounds, so the cost is not doubled. Do not add the two-round tier percentages, because one line can win different tiers across those rounds.
Jackpot odds for different lines
One round: P = u/N
Two independent Lotto rounds: P = 1 - (1 - u/N)2
d independent single-round draws: P = 1 - (1 - u/N)d
N is the game's full combination total, and u is the number of unique complete lines in each draw. For repeated two-round Lotto draw nights replace d with 2d. All outcomes are assumed equally likely, each pool is sampled without replacement, and separate rounds are independent. A percentage is P × 100. Duplicate entries within a draw do not add unique outcomes.
Worked example: seven different Thunderball lines have probability 7/8,060,598 of a top-prize match in one draw, about 0.00008684%. Seven entries consisting of the same full line cover one outcome and have probability 1/8,060,598. These figures describe coverage. They do not recommend buying more entries.
Total ticket cost is the stated per-line price multiplied by lines per draw and number of draws. The repeated-line example counts repeated paid entries. Costs exclude optional extras and price changes. Lower-prize odds across multiple lines require the actual number overlap, so this calculator does not infer them from a line count. Raffles, optional extras, expected returns, prize sharing, tax and the present value of annuity payments are outside the model. Past draws and marks on this website do not change the next draw's probabilities.
For the game-specific rules, examples and sources, use the individual odds guides linked above. For actual numbers, choose a result archive. Read our full methodology.