Use this free Lucky 15 bet calculator to estimate total return, bonus, and net profit for a 4-selection full-cover bet. Enter your decimal odds, stake per line, and the result of each selection to get an instant breakdown.
Selection A
Selection B
Selection C
Selection D
This calculator estimates returns for standard Lucky 15 structure (4 singles, 6 doubles, 4 trebles, 1 fourfold). Bonus rules vary by bookmaker.
What is a Lucky 15 bet?
A Lucky 15 is a popular full-cover multiple built from 4 selections. It contains 15 total lines:
- 4 singles
- 6 doubles
- 4 trebles
- 1 fourfold accumulator
You stake the same amount on each line. So if you place £1 per line, your total stake is £15.
How this free Lucky 15 bet calculator works
1) Enter stake and odds
Add your stake per line and decimal odds for selections A, B, C, and D.
2) Set each result
Choose win or lose for each selection. The calculator automatically finds all winning singles, doubles, trebles, and fourfolds.
3) Add promotions (optional)
Many bookmakers offer Lucky 15 bonuses, such as 10% for two winners, 15% for three winners, and 100% for all four winners. You can edit these percentages to match your offer.
4) Review your return breakdown
You’ll see:
- Total stake
- Winning lines by type
- Base return before bonus
- Bonus return and one-winner boost
- Total return and net profit/loss
Example Lucky 15 calculation
If your odds are 2.50, 3.00, 4.00, and 2.20 with £1 per line and all 4 win, every one of the 15 lines wins. That includes the fourfold, which can make returns rise quickly.
With an all-winners bonus, your total payout can be significantly higher than the basic line sum. This is why Lucky 15 bets are often used when you want balance: you still get singles, but you also keep upside from accumulators.
Free bet mode explained
Use Free bet mode when your bookmaker free-bet terms say “stake not returned.” In that case, each winning line pays only the profit portion (odds - 1), not full odds with stake included.
This is useful when comparing normal cash bets vs promotional stakes.
Tips for smarter Lucky 15 betting
- Keep line stake small: total stake is 15x your line stake.
- Check if your bookmaker applies bonus on winnings or profit only.
- Compare decimal odds carefully before placing your bet.
- Track expected vs actual outcomes to improve selection quality.
- Set a budget and avoid chasing losses.
Quick FAQ
How many bets are in a Lucky 15?
Exactly 15 bets: 4 singles, 6 doubles, 4 trebles, and 1 fourfold.
Can I still get a return with one winner?
Yes. Because Lucky 15 includes singles, one winner can still return money. Some bookmakers also add a one-winner enhanced-odds promo.
Does this calculator work for all bookmakers?
Yes for core Lucky 15 math. Promotion details vary, so adjust bonus percentages and one-winner boost settings to fit your specific offer terms.