By Betting.us Staff
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Betting Odds Calculator and Converter
Use our free betting odds calculator to input your stake either in American, decimal, fractional, or implied odds to easily determine the returns of a wager.
Sports Betting Odds Calculator
Betting Odds Calculator
Bet Type
Single Bet
American odds must be greater than 100 or less than -100
Add Bet
American odds must be greater than 100 or less than -100
Betting odds can be tricky to read for someone who's making their first steps in sports gambling, so this is where our betting odds calculator comes in. The American format is the most straightforward one, as the positive number shows you how much you would make on a $100 wager. Plain and simple, but you still need to understand this odds format to use it properly. Additionally, our free parlay calculator can assist you in exploring more complex betting strategies.
How to Use the Calculator
When using the odds payout calculator, you'll have eight fields at your disposal. However, you only need to enter values in two of them. The rest will auto-populate based on the formulas programmed into the calculator.
- Bet Amount - Enter the amount you bet.
- Bet Type - Single bet vs. Parlay. Specify whether your wager consists of a single or multiple selections.
- American Odds - Enter American odds here, i.e. +100.
- Decimal Odds - Enter decimal odds here, i.e. 1.20.
- Fractional Odds - Enter fractional odds here, i.e. 4/9.
- Implied Probability - The estimated likelihood of an event occurring.
- To Win - Your potential payout (including the amount staked).
- Total Payout - Your potential payout without including the amount staked.
With the help of our odds calculator, you can seamlessly convert odds prices from one format to another and see your potential payout in advance. This comes in very handy when you are placing wagers at a sportsbooks which won't allow for switching odds format. Use our other sports betting calculators for more complex wagers
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Calculating Implied Probability
Implied probability is a metric you can calculate based on the odds given to you by the sportsbook. It expresses the perceived likelihood of an event occurring according to the sportsbook. With that in mind, you can get an idea of which team or athlete is the perceived favorite and who is the underdog.
It is crucial to understand implied probability if you want to make decisions guided by sound logic. There's one little complication, though the calculation varies with the odds format. Therefore, we want to prepare you for all possible scenarios.
- Positive American Odds: Implied Probability = 100 / (Odds + 100)
- Negative American Odds: Implied Probability = (-Odds) / (-Odds + 100)
- Decimal Odds: Implied Probability = 1 / Odds
- Fractional Odds: Implied Probability = Denominator / (Denominator + Numerator)
Let's take, as a practical example, a match where the Toronto Raptors have +150 American odds to win. To calculate the implied probability for that team, we need to do the following: 100/(150+100) = 40%. That means the Raptors would have a 40% chance of winning, according to the sportsbook that gave those odds.
Here's where you and the sportsbook could come to a disagreement. It's only normal that the odds-giver wouldn't want to give you the best value. After all, this is what keeps sports betting sites in business.
Problem Gambling Help
Even if you have a betting payout calculator at your disposal, you wouldn't be immune to the harmful effects of compulsive gambling. That is why we recommend you stick to the local regulations and norms concerning responsible gambling.
If things get out of control, you can always turn to the local authorities for help. The NCPG is the chief organization in the US that combats problem gambling and provides counseling and resources.