Odds Converter
Type odds in any format, American, decimal, fractional, or implied probability, and see every other format plus the payout and break-even win rate.
Type in any box and the others update.
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How the conversions work
Common odds at a glance
| American | Decimal | Fractional | Implied probability |
|---|---|---|---|
| −300 | 1.333 | 1/3 | 75.00% |
| −200 | 1.500 | 1/2 | 66.67% |
| −150 | 1.667 | 2/3 | 60.00% |
| −110 | 1.909 | 10/11 | 52.38% |
| +100 | 2.000 | 1/1 | 50.00% |
| +150 | 2.500 | 3/2 | 40.00% |
| +200 | 3.000 | 2/1 | 33.33% |
| +300 | 4.000 | 3/1 | 25.00% |
| +500 | 6.000 | 5/1 | 16.67% |
Implied probability is the most useful format for comparing prices. It tells you how often a bet has to win for you to break even. Every strategy on this site, from bonus bet conversion to +EV betting, starts there.
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What does +150 mean?
A $100 bet at +150 wins $150 profit. In decimal odds that’s 2.50, in fractional odds 3/2, and the implied probability is 40%.
What does −110 mean?
You bet $110 to win $100. That’s 1.909 in decimal, 10/11 fractional, and a 52.38% implied probability, which is the win rate you need to break even.
Why do both sides add up to more than 100%?
The extra is the sportsbook’s margin, also called the vig or overround. Remove it with the no-vig calculator to see fair probabilities.