Bet calculator — payout, odds conversion and implied probability
Type a stake and a price. Everything below updates as you type — nothing is sent anywhere.
- Profit if it wins
- $58.82
- Total returned
- $158.82
- Decimal odds
- 1.588
- Fractional odds
- 10/17
- Implied probability
- 63.0% The price as a percentage, vig included — not an estimate of the outcome.
A $100.00 bet at -170 wins $58.82, returning $158.82 in total including the stake.
Common prices, on $100
| American odds | Profit on $100.00 | Total returned | Implied probability |
|---|---|---|---|
| -200 | $50.00 | $150.00 | 66.7% |
| -150 | $66.67 | $166.67 | 60.0% |
| -120 | $83.33 | $183.33 | 54.5% |
| -110 | $90.91 | $190.91 | 52.4% |
| +100 | $100.00 | $200.00 | 50.0% |
| +120 | $120.00 | $220.00 | 45.5% |
| +150 | $150.00 | $250.00 | 40.0% |
| +200 | $200.00 | $300.00 | 33.3% |
| +300 | $300.00 | $400.00 | 25.0% |
How the maths works
A negative price is what you must stake to win $100. At −150 you stake $150 to win $100, so $100 wins $66.67 and returns $166.67.
A positive price is what $100 wins. At +150, $100 wins $150 and returns $250.
Implied probability is the price expressed as a percentage. Both sides of a market add to more than 100% — the difference is the book's margin, which is why this figure is not a forecast.
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