If you want to calculate Lucky 15 winnings quickly, use the calculator below. Enter your stake per line, decimal odds for each of the four selections, and tick which selections won. The tool returns your total stake, total return, and net profit/loss with a full line-by-line breakdown.
What is a Lucky 15 bet?
A Lucky 15 is a popular multiple bet made from four selections. It contains 15 separate bets:
- 4 singles
- 6 doubles
- 4 trebles
- 1 fourfold accumulator
Because you are placing 15 individual lines, you can still get a return even if only one selection wins. That flexibility is why Lucky 15 bets are commonly used in horse racing and football accumulators.
How Lucky 15 returns are calculated
1) Total stake
Your total cost is simple:
Total Stake = Stake per Line × 15
2) Winning lines
Each line only pays if every selection inside that line wins. For example:
- A single pays if that one selection wins.
- A double pays only if both legs in that double win.
- The fourfold pays only if all four selections win.
3) Line return formula
Using decimal odds:
Line Return = Stake per Line × (Odds1 × Odds2 × ...)
Total return is the sum of all winning lines. Net profit/loss is then:
Profit/Loss = Total Return − Total Stake
Worked example
Suppose your stake is £1 per line and your four decimal odds are 2.50, 3.00, 1.80, and 4.20. If the first two selections win and the other two lose:
- Winning singles: Selection 1 and 2
- Winning doubles: only (1 & 2)
- Winning trebles/fourfold: none
Returns would be:
- Single 1: £1 × 2.50 = £2.50
- Single 2: £1 × 3.00 = £3.00
- Double (1,2): £1 × 2.50 × 3.00 = £7.50
Total return = £13.00, total stake = £15.00, net result = -£2.00.
Using this Lucky 15 calculator effectively
Use decimal odds
The calculator expects decimal odds (for example, 2.75). If your bookmaker shows fractional odds, convert them first.
Set results accurately
Tick only the selections that won. If a selection lost, leave it unchecked. The breakdown updates based on these outcomes.
Optional all-winners bonus
Some bookmakers add a bonus if all four selections win. You can enter that bonus percent in the optional field. This tool applies the bonus to profit only, and only when all four selections are marked as winners.
Common mistakes to avoid
- Entering total stake instead of stake per line.
- Mixing fractional and decimal odds.
- Assuming a double pays when one leg loses.
- Forgetting each-way terms are different from a standard Lucky 15 win bet.
Final thoughts
A Lucky 15 can produce large payouts when multiple selections land, while still offering partial protection through singles and doubles. Use the calculator before you place a bet so you understand your total exposure and potential payout scenarios.