Betting Odds Calculator
40/1 means that for every £1 you stake, you win £40 in profit if the bet wins. Your stake is returned on top of that, so a £1 bet at 40/1 returns £41 total.
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The implied probability is 2.44%. This means the bookmaker prices this outcome as having roughly a 2.44 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 40/1 Odds
| Stake | Profit | Total Return |
|---|---|---|
| £1.00 | £40.00 | £41.00 |
| £5.00 | £200.00 | £205.00 |
| £10.00 | £400.00 | £410.00 |
| £20.00 | £800.00 | £820.00 |
| £50.00 | £2,000.00 | £2,050.00 |
| £100.00 | £4,000.00 | £4,100.00 |
Odds Conversion
| Format | Value |
|---|---|
| Fractional | 40/1 |
| Decimal | 41 |
| American | +4000 |
| Implied Probability | 2.44% |
How the Calculation Works
Winnings: Stake x (40 / 1) = Profit. So £10 x (40 / 1) = £400.00 profit.
Probability: 1 / (40 + 1) = 1 / 41 = 2.44%.
Decimal odds: (40 / 1) + 1 = 41. Multiply your stake by this to get the total return including your stake.
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