Lucky 15 Calc
15 bets on 4 picks — one winner already pays.
How to Use This Calculator
- Pick your odds format (Decimal, Fractional, or American)
- Punch in the unit stake (what each individual bet costs)
- Drop in the odds for all 4 of your selections
- Flag the outcome of each selection (Won, Lost, or Void)
- Read off the total return, profit, and a clean breakdown by bet type
Formula
A Lucky 15 consists of 15 bets on 4 selections:
- 4 Singles: A, B, C, D
- 6 Doubles: AB, AC, AD, BC, BD, CD
- 4 Trebles: ABC, ABD, ACD, BCD
- 1 Four-fold: ABCD
Total Stake = 15 × Unit Stake
Just one winner guarantees a return from the singles.
Frequently Asked Questions
What exactly is a Lucky 15 bet?
A Lucky 15 is a 15-bet system spanning 4 selections: 4 singles, 6 doubles, 4 trebles, and 1 four-fold. With singles baked in, a single winner already locks in some return.
Do bookmakers throw in bonuses on Lucky 15s?
Plenty do. Common sweeteners include double odds when only one selection wins, or a percentage boost if all 4 land. Check what your bookmaker is offering.
What does a Lucky 15 cost?
A Lucky 15 costs 15 times your unit stake. So a $1 unit stake means a $15 total bet. Bump the unit to $5 and the cost climbs to $75.