Implied Probability to American Odds Converter

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How to Use Our Implied Probability to American Odds Converter

To use our Implied Probability to American Odds converter, simply enter your Implied Probability in the "Odds" input field.

The tool will automatically output your American odds after you've input valid odds.

It's also possible to change the "From Odds Format" and "To Odds Format".

Lastly, you may also want to check out our odds converter which let's you convert between Decimal, American, Fractional, Implied Probability, Hong Kong, Malaysian, and Indonesian odds all from one page!

How to Convert an Implied Probability to American odds

To convert an Implied Probability to American odds:

For percentages greater than 50%, (divide the percentage by (1 minus (the percentage divided by 100))) and multiply this by -1. Example for an 80% implied probability: (80 / (1 - (80 / 100))) * -1 = -400

For percentages less than or equal to 50%, (divide 100 by the quotient of (the percentage divided by 100)) and subtract 100. Example for a 40% implied probability: (100 / (40 / 100)) - 100 = +150

Implied Probability and American odds Explained

Here are the basics of implied probabilities and American odds.

Implied Probability

While sportsbooks don't typically express their odds in implied probabilities, all common odds formats can be converted to an implied probability. An implied probability is the percentage of times you'd need to win a bet (if you could bet it an infinite number of times) for that bet to breakeven.

For example, if your odds convert to an implied probability of 60%, your bet theoretically needs to win 60% of the time to breakeven. If it wins more than 60%, it'd be a profitable bet.

Keep in mind that sportsbooks add vig ("juice", "house edge", "tax", "fees", etc.) to their odds, meaning the implied probabilities of all outcomes for a scenario will have implied probabilities totaling greater than 100%.

American Odds

As you'd suspect, American odds are the primary format used in the United States. Odds in this format are expressed as a number greater than or equal to +100 or less than -100.

  • American odds greater than +100 are underdogs. The larger the number, the less likely a result is to occur. +110 is a relatively slight underdog with a 47.62% implied probability to win, while +300 odds imply only a 25% chance. You stand to profit $110 if you bet $100 at +110 odds or $300 if you bet $100 at +300 odds.
  • American odds less than -100 are favorites. The smaller the number, the higher the implied probability a side has to win. -110 is a slight favorite with a 52.36% implied probability, while -300 implies a 75% chance. You must risk $110 to potentially profit $100 at -110 odds, and you'd have to risk $300 to potentially profit $100 at -300 odds.
  • American odds at exactly +100 (or -100) have an implied probability of 50%. A +100 bet pays out even money, so if you bet $100 at +100, you stand to profit $100.

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