Betting Odds Calculator
12/1 means that for every £1 you stake, you win £12 in profit if the bet wins. Your stake is returned on top of that, so a £1 bet at 12/1 returns £13 total.
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The implied probability is 7.69%. This means the bookmaker prices this outcome as having roughly a 7.69 in 100 chance of happening.
These are odds against – the potential profit is greater than your stake. The higher the first number relative to the second, the less likely the bookmaker thinks the outcome is.
Winnings Table for 12/1 Odds
| Stake | Profit | Total Return |
|---|---|---|
| £1.00 | £12.00 | £13.00 |
| £5.00 | £60.00 | £65.00 |
| £10.00 | £120.00 | £130.00 |
| £20.00 | £240.00 | £260.00 |
| £50.00 | £600.00 | £650.00 |
| £100.00 | £1,200.00 | £1,300.00 |
Odds Conversion
| Format | Value |
|---|---|
| Fractional | 12/1 |
| Decimal | 13 |
| American | +1200 |
| Implied Probability | 7.69% |
How the Calculation Works
Winnings: Stake x (12 / 1) = Profit. So £10 x (12 / 1) = £120.00 profit.
Probability: 1 / (12 + 1) = 1 / 13 = 7.69%.
Decimal odds: (12 / 1) + 1 = 13. Multiply your stake by this to get the total return including your stake.
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