Odds converter
Switch between American, decimal and fractional odds, and see the chance each price means.
Free, no account needed. The link keeps your numbers, so you can share them.
Type in any box
Example numbers. Type your own.Like +150 or -110.
What you get back per $1, your bet included.
Profit over the amount bet, like 5/2.
The chance the price means, the site's cut included.
Result
Same price, four ways
−110 = 1.909
Fractional 10/11, chance 52.38%.
- A $100 bet wins
- +$90.91
- A $100 bet pays backYour bet included
- $190.91
- Bet needed to win $100
- $110.00
- ChanceIncludes the site's cut
- 52.38%
Common prices
Tap an American price to load it into the converter.
| American | Decimal | Fraction | Chance |
|---|---|---|---|
| 1.20 | 1/5 | 83.33% | |
| 1.333 | 1/3 | 75.00% | |
| 1.50 | 1/2 | 66.67% | |
| 1.667 | 2/3 | 60.00% | |
| 1.833 | 5/6 | 54.55% | |
| 1.909 | 10/11 | 52.38% | |
| 2.00 | 1/1 | 50.00% | |
| 2.10 | 11/10 | 47.62% | |
| 2.20 | 6/5 | 45.45% | |
| 2.50 | 3/2 | 40.00% | |
| 3.00 | 2/1 | 33.33% | |
| 4.00 | 3/1 | 25.00% | |
| 6.00 | 5/1 | 16.67% |
How it works
- Type a price in any box: American, decimal, fractional or chance.
- The other boxes fill in as you type.
- Tap a common price in the table below to load it.
American +X: decimal = 1 + X / 100American -X: decimal = 1 + 100 / XFractional A/B: decimal = 1 + A / BChance = 1 / decimal oddsExample
-110 in every format
- -110 American is 1 + 100 / 110 = 1.909 decimal.
- As a fraction that is 10/11: bet $11 to win $10.
- Chance: 1 / 1.909 = 52.38%.
Both sides at -110 add up to 104.76%. The extra 4.76% is the site's cut.
Questions
What is the difference between American and decimal odds?
Decimal odds are what you get back per $1, your bet included: 2.50 returns $2.50. American odds say how much a $100 bet wins (+150), or how much you bet to win $100 (-150). Both describe the same prices.
What does the chance mean?
The chance a price suggests: 1 divided by the decimal odds. It includes the site's cut, so the sides of one bet add up to more than 100%.
Why do both sides add up to more than 100%?
That extra is the site's cut, also called the vig or hold. Taking it out is called devigging, and the fair price calculator does it.
What are fractional odds?
Profit over the amount bet: 5/2 means a $2 bet wins $5. They are common in the UK. Decimal odds are the fraction plus 1, so 5/2 is 3.50.
Is +100 the same as -100?
Yes. Both mean even money: decimal 2.00, a 50% chance.
Learn the idea
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