The Betting Odds Converter helps you figure out what the odds are for each of the standard odds formats that you may come across:
American — what you will find on The Action Network and across most American sportsbooks
Decimal (also known as European) — more common in other parts of the world
Fractional (also known as UK) — the main format in the United Kingdom, also common in futures
You can find the Betting Calculators on the top bar of the home page or if you scroll down and check the right side of the home page.
There are several spots you can enter odds using whatever format you are comfortable with - American, Decimal, Fractional or Implied.
Implied Odds are not something you'd find at a sportsbook, but rather the chance a wager has to win. For example, a +100 bet has a 50.00 (or 50%) chance to win.
In the example above, a bettor is risking $100 on a bet with +250 (or 3.5, or 5/2) odds. This would win $250 and payout $350. All things equal, one would expect this bet to win just shy of 30% of the time.