Are these percentages the chance of winning any prize?

No. The percentages show the chance that one of your unique lines matches the full top-prize combination. They are not the chance of winning any smaller prize.

Does buying more lines improve the chance of matching the top-prize combination?

Yes, if the lines are unique, the chance increases in direct proportion to the number of lines. For example, 7 unique lines have seven times the chance of 1 line. The chance is still very small.

Does Lottery-Checker improve lottery odds?

No. Lottery-Checker does not change lottery odds. It only helps users organise planned combinations and avoid accidental duplicate lines inside the shared planner.

Which supported game has the fewest top-prize combinations?

Thunderball has the fewest top-prize combinations among the supported games on this page, with 8,060,598 possible full combinations.

UK lottery odds and number combinations

This guide shows how many full number combinations are possible for each lottery game supported by Lottery-Checker, and the approximate chance that 1, 7, 14 or 21 unique lines match the full top-prize combination.

Important: these percentages are for matching the full top-prize combination only. They are not the chance of winning any smaller prize. Lottery-Checker is a planning tool only - it does not sell tickets, submit entries, check official results or pay prizes.

Combination totals by game

UK Lotto

45,057,474 possible top-prize combinations.

6 numbers from 1 to 59.

EuroMillions

139,838,160 possible top-prize combinations.

5 numbers from 1 to 50 + 2 Lucky Stars from 1 to 12.

Set For Life

15,339,390 possible top-prize combinations.

5 numbers from 1 to 47 + 1 Life Ball from 1 to 10.

Thunderball

8,060,598 possible top-prize combinations.

5 numbers from 1 to 39 + 1 Thunderball from 1 to 14.

Top-prize chance by number of unique lines

The table assumes every line is unique in the same draw. If you repeat a line, you do not cover an extra combination.

Game	Number selection	Combination formula	Total full combinations	1 line	7 lines	14 lines	21 lines
UK Lotto	6 numbers from 1 to 59	C(59,6)	45,057,474	0.00000222% 1 in 45,057,474	0.0000155% 1 in 6,436,782	0.0000311% 1 in 3,218,391	0.0000466% 1 in 2,145,594
EuroMillions	5 numbers from 1 to 50 + 2 Lucky Stars from 1 to 12	C(50,5) × C(12,2)	139,838,160	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	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	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

How the percentages are calculated

For one line, the chance of matching the top-prize combination is:

1 ÷ total combinations × 100

For more than one unique line, the chance is:

number of unique lines ÷ total combinations × 100

Example: UK Lotto has 45,057,474 possible 6-number combinations. With 7 unique lines, the top-prize chance is 7 ÷ 45,057,474 × 100 = 0.0000155%, or about 1 in 6,436,782.

Why this matters for Lottery-Checker

Lottery-Checker cannot improve the official odds of any lottery line. What it can do is help you organise your planned lines and reduce accidental duplication inside the shared planner. If a combination is already marked as used here, you can choose another line and cover a different combination instead of repeating the same one.

Responsible use

Lottery games are chance-based. More 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.

FAQ

Are these the chances of winning any prize?

No. These are the chances of matching the full top-prize combination. Smaller prize tiers have different odds.

Does 21 lines give 21 times the chance of 1 line?

Yes, if all 21 lines are different and entered into the same draw. The chance is still very small.

Does avoiding duplicate lines improve the odds of one ticket?

No. It does not change the odds of any individual ticket. It only helps you avoid covering the same combination twice inside your planning.