Lucky 15 calculator
15 bets across 4 selections — 4 singles, 6 doubles, 4 trebles, 1 four-fold. Bookmaker bonus rules built in.
Total stake
—
Total return
—
Profit
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| Component | Winners | Return |
|---|---|---|
| Singles | 0/4 | £0.00 |
| Doubles | 0/6 | £0.00 |
| Trebles | 0/4 | £0.00 |
| Four-fold | 0/1 | £0.00 |
How to use this calculator
- Enter the decimal odds for selections 1 through 4.
- Mark each as Won or Lost.
- Toggle the bonus rule that applies (most books pay 2× on a single winner or 10-25% on all four).
- Returns are calculated for every component bet.
Worked example
Four selections at 3.0, 4.0, 5.0, 6.0, all winning. £1 unit stake = £15 total. Single legs return 3+4+5+6 = £18. Doubles 12+15+18+20+24+30 = £119. Trebles 60+72+90+120 = £342. Four-fold = £360. Total return £839.
Common questions
What is the Lucky 15 bonus?
Most UK books pay a 2x or 3x bonus on the single if only one selection wins, and 10-25% on all four winners.
Is a Lucky 15 better than a 4-fold?
It costs 15× the unit stake but covers you with returns even if some legs lose. Worse expected value on average if you back true favourites; better tolerance for variance.