Odds converter (American, decimal, fractional)
Convert American, decimal, and fractional odds, and see the chance each price implies.
Result
- American
- -110
- Decimal
- 1.91
- Fractional
- 10/11
- Implied chance
- 52.4%
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How it works
American odds show the profit on a $100 bet (+150) or the stake needed to win $100 (-110). Decimal odds show the total payout per $1, stake included. Fractional odds show profit to stake.
The implied chance is 1 divided by the decimal odds. It includes the book's margin, so both sides of a market add up to more than 100%.
How do you convert American odds to decimal?
For positive odds, divide by 100 and add 1: +150 is 2.50. For negative odds, divide 100 by the odds without the minus sign and add 1: -110 is 1.91 and -200 is 1.50.
In fractional odds, +150 is 3/2, -110 is 10/11, and +250 is 5/2.
What is implied probability?
The chance a price says a bet has of winning: 1 divided by the decimal odds. -110 implies 52.4%, so a market with -110 on both sides adds up to 104.8%. The extra 4.8% is the book's margin.
Taking that margin out gives the fair chance. The de-vig calculator does it for both sides of a market.
More detail: Anytime touchdown scorer odds, explained.