Sports Betting Odds Calculator

How does the Kelly criterion calculator work?

• How To Calculate Odds Payout
• Sports Betting Odds
• Parlay Calculator

Betting Odds Calculator. Our betting odds calculator is a simple tool that allows you to quickly convert different type of odds. Input your stake & odds in American, Decimal, or Fractional formats to quickly calculate the payout for your bets. Betting Odds Calculator Simply enter the odds in the appropriate space provided and it will automatically calculate to the odds and implied probabilities: How the Odds Calculator and Converter works Sport betting odds come in many different types, but essentially express the exact same thing. A parlay is a single bet that links together two or more individual wagers for a high payout. A 2 team parlay might pay 13/5, a three team parlay might pay 6/1, a four team parlay might pay.

By entering your bankroll, the odds and your estimated probability of winning, the Kelly Criterion calculator will tell you how much you should wager on a certain event to maximise your value and profit.

Use the Kelly Criterion Calculator here

According to the Kelly criterion, you should place a wager of approximately 1.18% of your account balance on this selection.

After applying the fractional Kelly value of 0.04, this adjusts to a wager of approximately 1.71% of your account balance.

Based on your account balance of $1,000, this equates to a wager of $11.76.

The expected value of this wager is approximately $11.76*[(0.68)(0.60) + (-1)(0.4)] = $0.09, which equates to a 0.80% return on the funds wagered.

The Kelly criterion returned a value of -0.0061.

After applying the fractional Kelly value of 0.0, this adjusts to -0.0061 of your account balance.

Because this number is below 0 you should not back the selection at the available odds.

What is the Kelly Criterion?

The Kelly Criterion is a method by which you can used your assessed probability of an event occurring in conjunction with the odds for the event and your bankroll, to work out how much to wager on the event to maximise your value. By inputting the odds, the probability of the event occurring and your betting balance, you will be able to determine the amount you should wager on the event. The fractional Kelly betting input is a way to change how aggressive or conservative you are with your wagering (1 being the standard and moving towards 0 the more conservative you wish to be with your wagering). Ultimately, the Kelly Criterion calculator, if you are accurate with your assessed probability should increase your value and profit over a long-term period.

All games on the menus of legal sportsbooks feature lines that give the house an edge. No sports bet works out as an even money proposition on both sides.

The house edge allows the sportsbook to make money in the long term, no matter what actually happens on the field. Some games offer odds that favor the house more than others.

The Edge Table calculates the house edge for upcoming games across the top legal online sportsbooks. The Edge Table displays which sportsbook takes the lowest edge on each game, allowing bettors to evaluate which book presents the most player-friendly odds.

Sports Betting Edge Table

Calculating The House Edge

You can calculate the house edge on a particular game by converting the odds on both sides into implied probability. The favored team’s implied win probability percentage minus the underdog’s implied probability yields the edge built into a bet by the sportsbook.

Implied Probability Calculation For Negative American Odds

Suppose the line on an upcoming Kansas City Chiefs game looks like this:

To calculate the implied probability of the Chiefs winning, you have to put the payout odds into the implied probability for negative American odds formula:

Implied Probability = (-1*(Odds))/(-1(Odds) + 100)

Putting the Chiefs’ (-323) moneyline odds into this equation yields the following result:

(-1*(-323))/(-1(-323)+100)

That equation solves to 323/423, which converts to 76.36% (rounded up). The (-323) odds on Kansas City converts to a 76.36% implied probability of winning.

Implied Probability Calculation For Positive American Odds

To calculate the Dolphins implied probability at (+275) moneyline odds, take a look at the implied probability for positive American odds formula:

Implied Probability = 100/(Odds + 100)

Putting Miami’s (+275) line into this formula yields the following:

How To Calculate Odds Payout

100/(275 + 100)

That equation converts to 26.67% as the implied winning probability for the Dolphins.

Using Implied Probabilities To Determine The House Edge

Now that you’ve converted the moneyline odds on both sides of the bet into implied probabilities, you can calculate the house’s built-in edge on the Kansas City-Miami NFL game.

To accomplish this, we add both implied probabilities together and subtract (1). Before we put the implied probabilities into the equation, we convert the percentages to decimal format:

(0.7636 + 0.2667) – 1

Sports Betting Odds

Which converts to:

1.303 – 1 = 0.303

The house edge on the Chiefs-Dolphins game in 0.303, or 3.03%.

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Check out the latest Super Bowl Odds and How To Bet On The NFL.