lucky 31 calculator

What Is a Lucky 31 Bet?

A Lucky 31 is a multiple bet made from five selections. It contains every possible combination from those picks:

• 5 singles
• 10 doubles
• 10 trebles
• 5 fourfolds
• 1 fivefold

That adds up to 31 total lines, which is where the name comes from. Because you cover many combinations, you can still receive a return even if not all selections win.

How This Lucky 31 Calculator Works

1) Stake Per Line

Enter your stake for each of the 31 lines. For example, a £1 unit stake means total outlay is £31.

2) Decimal Odds for 5 Selections

Enter decimal odds (such as 2.50, 1.80, 4.00). The calculator uses these values to compute each winning single, double, treble, fourfold, and fivefold.

3) Mark Winning Selections

Tick “Won” for each successful selection. The calculator then identifies which combinations are still alive and sums all winning returns.

4) Optional All-5 Bonus

Some bookmakers offer a bonus if all five selections win. You can enter a percentage to model this. In this tool, bonus is applied to net winnings when all five win.

Lucky 31 Formula (Simple Version)

For each winning line:

Line Return = Stake × Product of Decimal Odds in that line

Total return is the sum of all winning lines, plus optional bonus. Profit is:

Profit = Final Return − Total Stake

Why Use a Calculator Instead of Manual Math?

• Lucky 31 bets include many combinations and are easy to miscalculate by hand.
• You can test scenarios quickly (e.g., 2 winners vs 3 winners vs all 5 winners).
• You can compare stake size, odds profile, and potential returns before placing a bet.
• You get immediate insight into line-by-line performance.

Quick Tips for Better Use

• Use realistic odds and outcomes when planning.
• Keep stake per line consistent with your bankroll limits.
• Check whether your bookmaker bonus terms match your assumptions.
• Use this as a planning and learning tool, not a guarantee of profit.

Lucky 31 vs Other Multiples

Lucky 15

Uses 4 selections and 15 lines. Lower cost, less coverage than Lucky 31.

Yankee

Also built from 4 selections, but no singles (11 lines total). Requires at least 2 winners for any return.

Lucky 63

Uses 6 selections and 63 lines. Larger outlay and potentially larger upside, but higher risk due to stake volume.

Responsible Betting Reminder

Always set spending limits and never chase losses. If betting stops being fun, take a break and seek support. A calculator helps with clarity, but discipline is what protects your bankroll.