How do you convert American odds to implied probability?
For positive odds, divide 100 by the odds plus 100. For negative odds, divide the absolute odds by the absolute odds plus 100.
American · decimal · fractional
Betting odds converter, probability and payout.
Enter American, decimal or fractional odds. See every equivalent format, implied probability, potential profit, total return and the fair probability after removing the market margin.
American odds-110
Decimal odds1.909
Fractional odds10/11
Implied probability52.38%
Profit$90.91
Total payout$190.91
Switch formats without changing the underlying price. The implied percentage includes the sportsbook price; it is not a forecast.
Remove the built-in margin.
Add the other side to estimate the market's no-vig probability for each outcome.
First side, no vig50.00%
Other side, no vig50.00%
Market hold4.76%
The quick read
What the number means.
Negative odds show how much must be risked to win $100. Positive odds show the profit from a $100 stake.
Implied probability translates that price into a percentage. Because both sides normally add to more than 100%, use the two-way calculation to see the market after its margin is removed.
Build multiple legs with the parlay calculator, split picks with the round robin calculator, check multiple prices with the arbitrage calculator, or browse all betting calculators.
American odds and implied probability chart.
| American odds | Implied probability | Decimal odds | Profit on $100 |
|---|---|---|---|
| -200 | 66.67% | 1.500 | $50.00 |
| -150 | 60.00% | 1.667 | $66.67 |
| -120 | 54.55% | 1.833 | $83.33 |
| -110 | 52.38% | 1.909 | $90.91 |
| +100 | 50.00% | 2.000 | $100.00 |
| +120 | 45.45% | 2.200 | $120.00 |
| +150 | 40.00% | 2.500 | $150.00 |
| +200 | 33.33% | 3.000 | $200.00 |
| +300 | 25.00% | 4.000 | $300.00 |
Can I convert decimal or fractional betting odds?
Yes. Choose American, decimal or fractional above and enter the price in that format. The converter shows the equivalent price in all three formats.
What does −110 pay on a $100 bet?
At −110, a $100 stake produces $90.91 in profit and a total return of $190.91 if the bet wins.
What is no-vig probability?
No-vig probability rescales both sides of a market to remove the percentage included in the sportsbook's prices. The two adjusted probabilities add to 100%.