Moneyline to Percentage Formula:
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Moneyline odds represent how much money you would win on a $100 bet (for positive odds) or how much you need to bet to win $100 (for negative odds). Converting these to percentages gives the implied probability of that outcome occurring.
The calculator uses the following formulas:
Where:
Explanation: Positive moneylines indicate underdogs where the potential payout is greater than the risk, while negative moneylines indicate favorites where the risk is greater than the potential payout.
Details: Understanding the implied probability helps bettors assess whether a wager offers value by comparing it to their own assessment of the true probability.
Tips: Enter the moneyline odds (with + or - sign) to calculate the implied win probability. For example, +150 (underdog) or -200 (favorite).
Q1: What does a +150 moneyline mean?
A: +150 means a $100 bet would win $150 (plus your $100 back). The implied probability is 100/(150+100) = 40%.
Q2: What does a -200 moneyline mean?
A: -200 means you need to bet $200 to win $100. The implied probability is 200/(200+100) = 66.67%.
Q3: Why is the percentage higher for negative moneylines?
A: Negative moneylines represent favorites, which have a higher probability of winning according to the oddsmakers.
Q4: How accurate are these probabilities?
A: They represent the bookmaker's assessment including their margin (vig). The true probability is slightly lower.
Q5: Can I use this for parlay calculations?
A: Yes, but remember probabilities multiply in parlays, making the combined probability lower than individual probabilities.