Betting Odds Calculator
15/8 means that for every £8 you stake, you win £15 in profit if the bet wins. Your stake is returned on top of that, so a £8 bet at 15/8 returns £23 total.
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The implied probability is 34.78%. This means the bookmaker prices this outcome as having roughly a 34.78 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 15/8 Odds
| Stake | Profit | Total Return |
|---|---|---|
| £1.00 | £1.88 | £2.88 |
| £5.00 | £9.38 | £14.38 |
| £10.00 | £18.75 | £28.75 |
| £20.00 | £37.50 | £57.50 |
| £50.00 | £93.75 | £143.75 |
| £100.00 | £187.50 | £287.50 |
Odds Conversion
| Format | Value |
|---|---|
| Fractional | 15/8 |
| Decimal | 2.88 |
| American | +188 |
| Implied Probability | 34.78% |
How the Calculation Works
Winnings: Stake x (15 / 8) = Profit. So £10 x (15 / 8) = £18.75 profit.
Probability: 8 / (15 + 8) = 8 / 23 = 34.78%.
Decimal odds: (15 / 8) + 1 = 2.88. Multiply your stake by this to get the total return including your stake.
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