Calculate Lucky 31 Returns & Profit
Enter five selections, your stake per line, and whether each pick won or lost. The calculator supports both decimal odds (e.g., 2.50) and fractional odds (e.g., 6/4).
Selection 1
Selection 2
Selection 3
Selection 4
Selection 5
What is a Lucky 31 bet?
A Lucky 31 is a full-cover bet with five selections. It combines every possible accumulator from those five picks, which creates 31 total bets:
- 5 singles
- 10 doubles
- 10 trebles
- 5 fourfolds
- 1 fivefold
Because singles are included, you can still get a return even when several picks lose. That makes Lucky 31 more forgiving than an accumulator, but the total stake is larger.
How this Lucky 31 odds calculator works
Step 1: Enter your odds
You can input decimal or fractional format. Fractional odds are converted internally using:
decimal = (numerator / denominator) + 1
Step 2: Enter stake per line
Your total cost is always:
Total Stake = 31 × Stake Per Line
So if your stake per line is £2, your full Lucky 31 stake is £62.
Step 3: Mark each selection as win or lose
The calculator evaluates every line and only pays returns on lines where all included selections won.
Understanding the output
When you click calculate, you’ll see:
- Total stake – what you risked across all 31 lines.
- Winning lines – number of lines that landed.
- Gross return – total payout including returned stakes.
- Net profit/loss – gross return minus total stake.
- Breakdown by bet type – singles, doubles, trebles, fourfolds, and fivefold.
Quick strategy notes for Lucky 31 bets
1) Choose value, not just long shots
Because Lucky 31 includes many doubles and trebles, combining moderate value selections often performs better than using only very high odds picks.
2) Watch your real stake
A “small” line stake adds up quickly. Always multiply by 31 before placing your bet.
3) Check bookmaker bonus rules
Some operators offer enhanced payouts when all five selections win. Bonus rules vary, so this calculator lets you set the bonus manually as an optional percentage.
Example
If all five selections win, all 31 lines return. That’s the maximum payout case. If only two selections win, returns come from:
- the two winning singles
- the one double formed by those two selections
This is why Lucky 31 can still produce partial returns while a fivefold accumulator would lose completely.
Responsible betting reminder
Even with good maths, betting outcomes are uncertain. Use this calculator to understand risk, set a fixed budget, and never chase losses. If betting stops being fun, take a break and seek support.