American to Decimal Odds Converter

Select the odds formats you're converting to/from, then enter your odds.
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How to Use Our American to Decimal Odds Converter

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

The tool will automatically output your Decimal 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 American odds to Decimal odds

To convert American odds to Decimal odds:

For positive American odds, add 1 to (the American odds divided by 100). Example for +150 American odds: (150 / 100) + 1 = 2.5

For negative American odds, subtract (100 divided by the American Odds) from 1. Example for -150 American odds: 1- (100 / -150) = 1.67

American odds and Decimal odds Explained

Here are the basics of American odds and Decimal odds.

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.

Decimal Odds

Decimal odds are commonly used in continental Europe, Canada, and Australia. Decimal odds are a number greater than 1.

You can calculate your total payout by multiplying your bet size by the decimal odds. For example, a $10 bet at 2.5 decimal odds would payout $25. You can then subtract your bet from this total payout to find your potential profit ($25 - $10 = $15).

  • Decimal odds greater than 2 are underdogs, with larger decimal odds being less likely to win. 2.1 converts to a 47.62% implied probability, while 4.0 converts to 25%.
  • Decimal odds less than 2 are favorites. The lower the value, the bigger the favorite. 1.923 has an implied probability of 52%, while 1.25 is 80%.
  • Decimal odds of exactly 2 have a 50% implied probability.

More Odds Converters

See all of our converters below or check out our odds converter that let's you convert between all seven odds formats on one page!