Patent Bet Calculator (Win Patent)
Enter your stake per line, odds for 3 selections, and tick winners. Odds can be decimal (e.g., 3.5) or fractional (e.g., 5/2).
Selection 1
Selection 2
Selection 3
What is a patent bet?
A patent bet is a classic 3-selection multiple bet made up of 7 separate bets:
- 3 singles
- 3 doubles
- 1 treble
Because singles are included, you can still get some return even if only one selection wins. That makes a patent more forgiving than a straight treble, but it also costs more because you are placing seven lines instead of one.
How this patent bet calculator works
This tool calculates a standard win patent. You enter:
- Your stake per line
- The odds for each of the 3 selections (decimal or fractional)
- Which selections actually won
The calculator then breaks out the returns from singles, doubles, and treble, adds them together, and compares that to your total stake.
| Component | Number of Bets | Pays When |
|---|---|---|
| Singles | 3 | Each winning single selection |
| Doubles | 3 | Any 2 winning selections |
| Treble | 1 | All 3 selections win |
Patent bet formula
1) Total stake
Total Stake = Stake Per Line × 7
2) Return per winning line
- Single return = stake × decimal odds
- Double return = stake × odds A × odds B
- Treble return = stake × odds A × odds B × odds C
3) Profit or loss
Profit/Loss = Total Return − Total Stake
Quick example
Suppose you place a £2 patent with decimal odds of 2.50, 4.00, and 1.80, and only the first two selections win:
- Total stake = £2 × 7 = £14
- Singles = £2×2.50 + £2×4.00 = £13.00
- Doubles = £2×2.50×4.00 = £20.00
- Treble = £0 (third selection lost)
- Total return = £33.00
- Profit = £33.00 − £14.00 = £19.00
Common mistakes to avoid
Confusing total stake with stake per line
If your stake per line is £5, your total outlay is £35 on a patent (not £5).
Mixing fractional and decimal odds incorrectly
Fractional 5/2 is decimal 3.50 (including stake in returns). This calculator converts for you automatically.
Forgetting that doubles and treble require multiple winners
A single winner triggers only the single line(s); doubles and treble need multiple successful outcomes.
Win patent vs each-way patent
This page calculates a win patent. An each-way patent is larger (14 lines), because each line is split into a win and place part. If you need place terms and each-way fractions, use a dedicated each-way patent calculator.
Responsible betting reminder
Betting should stay fun and controlled. Set a budget, track spending, and never chase losses. If betting starts to feel stressful, pause and seek support.