Decimal to American Odds Converter
Use this decimal to American odds converter to translate any decimal price into a moneyline (American) line and see the implied probability. Decimal odds (popular in Europe, Australia, and on betting exchanges) show the total payout per unit staked, including the stake itself. American odds use a positive or negative number to express how much you profit on a $100 bet. Converting between them takes one formula.
The formula
Decimal odds ≥ 2.00: American = (Decimal − 1) × 100Decimal odds < 2.00: American = −100 ÷ (Decimal − 1)Example: Decimal 2.50 → (2.50 − 1) × 100 = +150. Decimal 1.67 → −100 ÷ (1.67 − 1) = −149.
Reference table
Common decimal values and their American equivalents (rounded).
| Decimal | American | Probability |
|---|---|---|
| 1.20 | -500 | 83.3% |
| 1.50 | -200 | 66.7% |
| 1.67 | -149 | 59.9% |
| 2.00 | +100 | 50.0% |
| 2.50 | +150 | 40.0% |
| 3.00 | +200 | 33.3% |
| 4.00 | +300 | 25.0% |
| 5.00 | +400 | 20.0% |
| 6.00 | +500 | 16.7% |
| 10.00 | +900 | 10.0% |
Frequently Asked Questions
Why convert decimal to American?
US sportsbooks display moneyline by default. If your model or sharp source quotes decimal (Pinnacle, Betfair, prediction markets), you need to convert before comparing prices against US books.
Why does decimal 2.00 equal +100?
Decimal 2.00 means doubling your stake (1.00 profit per 1.00 staked). American +100 means winning $100 on a $100 stake. Both are even money at 50% implied probability.
How do I round the American result?
US sportsbooks typically round American odds to the nearest 5 or 10. The calculator shows the exact conversion; round to the nearest standard line your book displays.
What about fractional or implied probability?
Use the full odds converter for all seven formats including fractional, implied probability, Indonesian, Hong Kong, and Malay.
Need a different format?
Open the full odds converter for fractional, implied probability, Indonesian, Hong Kong, and Malay.