Also known as moneyline odds, American odds are predominantly used in the US. They show you how much you need to bet to win a certain amount. They also have a plus (+) or minus (-) sign beside them, indicating who are the underdogs and the favorites.
In American odds, the minus sign shows you the amount you need to bet to win $100. For example, if the odds are -150, you need to bet $150 to win $100. Meanwhile, the plus sign shows you how much you win if you bet $100.For example, if you see +200, you’ll win $200 if you bet $100.
You might sometimes see +/-100. In this case, it’s an even money bet. You stand to win the same amount you wager.
To calculate your payouts for favorites (-), divide your bet by the odds (then multiply by 100), to see your profit. For underdogs (+), multiply your bet by the odds (then divide by 100), to see your payout.