Betting Odds Calculator
9/1 means that for every £1 you stake, you win £9 in profit if the bet wins. Your stake is returned on top of that, so a £1 bet at 9/1 returns £10 total.
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The implied probability is 10%. This means the bookmaker prices this outcome as having roughly a 10 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 9/1 Odds
| Stake | Profit | Total Return |
|---|---|---|
| £1.00 | £9.00 | £10.00 |
| £5.00 | £45.00 | £50.00 |
| £10.00 | £90.00 | £100.00 |
| £20.00 | £180.00 | £200.00 |
| £50.00 | £450.00 | £500.00 |
| £100.00 | £900.00 | £1,000.00 |
Odds Conversion
| Format | Value |
|---|---|
| Fractional | 9/1 |
| Decimal | 10 |
| American | +900 |
| Implied Probability | 10% |
How the Calculation Works
Winnings: Stake x (9 / 1) = Profit. So £10 x (9 / 1) = £90.00 profit.
Probability: 1 / (9 + 1) = 1 / 10 = 10%.
Decimal odds: (9 / 1) + 1 = 10. Multiply your stake by this to get the total return including your stake.
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