Lucky 31 Betting Calculator
Enter your stake per line, odds for 5 selections, and whether each selection won, lost, or was void. Supports decimal odds (e.g., 2.50) and fractional odds (e.g., 6/4).
Optional. Some bookmakers offer Lucky 31 bonuses. Enter 0 if none.
Selection 1
Selection 2
Selection 3
Selection 4
Selection 5
What is a Lucky 31 bet?
A Lucky 31 is a full-cover bet made from five selections. It includes every possible accumulator from those five picks: singles, doubles, trebles, four-folds, and one five-fold.
In total, that gives 31 individual bets. If your stake is $1 per line, your total outlay is $31. If your stake is $2 per line, your total outlay is $62.
| Bet Type | Number of Bets |
|---|---|
| Singles | 5 |
| Doubles | 10 |
| Trebles | 10 |
| Four-folds | 5 |
| Five-fold | 1 |
| Total | 31 |
How this betting calculator works
This Lucky 31 calculator uses a straightforward win-settlement model:
- Won selections are settled using the entered odds.
- Lost selections make any combination containing that leg lose.
- Void selections are treated at decimal odds of 1.00 in combinations.
- An optional bonus percentage can be applied to single winnings when you have 4+ winning selections.
Core formula
Total Stake = Stake per line × 31
Total Return = Sum of all winning line returns + any bonus
Net Profit/Loss = Total Return − Total Stake
Example scenario
Suppose you place $1 per line and get 3 winners, 2 losers. You still receive returns from winning singles, winning doubles formed by those winners, and the winning treble. Any line that includes a losing leg loses.
This is why Lucky 31 bets are popular: they can still return money with partial success, unlike a straight accumulator that needs all picks to win.
Tips when using a Lucky 31 bet calculator
1) Always confirm your odds format
Decimal and fractional odds represent the same value differently. This calculator accepts both, but consistency helps avoid mistakes.
2) Check stake-per-line, not total stake
Many bettors accidentally think in total stake and forget that Lucky 31 multiplies the line stake by 31. Keep this in mind before placing your bet.
3) Understand bonus terms
Bookmaker bonuses vary. Some apply only to single winnings, some have minimum odds, and others exclude specific markets. Use the bonus field only when your offer clearly qualifies.
Lucky 31 vs other full-cover bets
- Yankee: 11 bets from 4 selections (no singles).
- Lucky 15: 15 bets from 4 selections (includes singles).
- Lucky 31: 31 bets from 5 selections.
- Lucky 63: 63 bets from 6 selections.
As you add selections, coverage and cost both increase quickly. That makes calculators essential for bankroll planning.