Betting Odds Calculator
1/2 means that for every £2 you stake, you win £1 in profit if the bet wins. Your stake is returned on top of that, so a £2 bet at 1/2 returns £3 total.
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The implied probability is 66.67%. This means the bookmaker prices this outcome as having roughly a 66.67 in 100 chance of happening.
These are odds on – your stake is greater than the potential profit. The bookmaker considers this outcome more likely than not.
Winnings Table for 1/2 Odds
| Stake | Profit | Total Return |
|---|---|---|
| £1.00 | £0.50 | £1.50 |
| £5.00 | £2.50 | £7.50 |
| £10.00 | £5.00 | £15.00 |
| £20.00 | £10.00 | £30.00 |
| £50.00 | £25.00 | £75.00 |
| £100.00 | £50.00 | £150.00 |
Odds Conversion
| Format | Value |
|---|---|
| Fractional | 1/2 |
| Decimal | 1.5 |
| American | -200 |
| Implied Probability | 66.67% |
How the Calculation Works
Winnings: Stake x (1 / 2) = Profit. So £10 x (1 / 2) = £5.00 profit.
Probability: 2 / (1 + 2) = 2 / 3 = 66.67%.
Decimal odds: (1 / 2) + 1 = 1.5. Multiply your stake by this to get the total return including your stake.
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