Moneyline Odds Calculator

TATITIC CALCULATOR Moneyline Odds A precise tool.
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What is the Moneyline Odds & How does it work?

Moneyline odds are the traditional American way of expressing a wager’s payout. A positive moneyline (e.g., +150) tells you how much profit you would make on a $100 stake, while a negative moneyline (e.g., -200) indicates how much you must risk to win $100.

To compare moneyline odds with other formats, they are first converted to decimal odds and then to an implied probability. This conversion uses simple piece‑wise formulas that treat positive and negative values differently.

begin{cases} D = frac{M}{100}+1 & text{if } M>0 \ D = frac{100}{|M|}+1 & text{if } M<0 end{cases}
begin{cases} P = frac{100}{M+100} & text{if } M>0 \ P = frac{|M|}{|M|+100} & text{if } M<0 end{cases}
D = Decimal odds, P = Implied probability, M = Moneyline odds

Understanding the implied probability helps bettors assess value. If the calculated probability is lower than the true chance of an event occurring, the bet is considered +EV (positive expected value), making it a potentially profitable wager.

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Frequently Asked Questions
How do I convert a positive moneyline to decimal odds?
To convert a positive moneyline (e.g., +150) to decimal odds, divide 100 by the moneyline value and add 1. For +150, it’s (100/150) + 1 = 1.67.
What does a negative moneyline (-200) mean?
A negative moneyline means you must risk $200 to win $100. The decimal odds are calculated as 1 + (100 / -200) = 0.5.
How do I calculate the implied probability from moneyline odds?
For positive moneylines, divide 100 by the sum of 100 and the moneyline value. For negative moneylines, divide the absolute value of the moneyline by the sum of the absolute value of the moneyline and 100.
Can you explain how to use this calculator?
Enter your moneyline odds into the designated field, select whether it’s positive or negative, and click calculate. The tool will show you the decimal odds and implied probability.
What is the difference between positive and negative moneylines?
Positive moneylines indicate potential profit on a $100 bet, while negative moneylines indicate the amount needed to bet to win $100.
How do I interpret the implied probability from this calculator?
The implied probability shows the likelihood of an outcome based on the odds. For example, if the implied probability is 60%, it suggests a 40% chance of winning.
Can this calculator handle fractional odds as well?
This calculator primarily works with moneyline odds. For fractional odds, you would need to convert them to decimal or American format first.

Results are for informational purposes only and do not constitute professional advice.