Betting Odds Converter

Convert betting odd types, calculate implied probability, and payout.

Betting Odds Calculator

Begin by entering the odds you want to convert. Once you enter the odds in the format of your choice, you will see the converted odds along with the implied probability those odds represent. You can change the Bet amount to calculate the payout, profit and ROI.

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American Odds

American odds, also known as moneyline odds, are one of the most popular formats used in sports betting, especially in the United States. They are a way of expressing betting odds that can initially seem confusing, but with a bit of guidance, they become easy to understand and use.

What Are American Odds?

American odds represent how much profit you could make based on a $100 bet. They are displayed as positive or negative numbers, which indicate different types of bets:

  • Positive American odds (+): Indicate the underdog in a matchup and show how much you would profit on a $100 bet.
  • Negative American odds (−): Indicate the favorite and show how much you need to bet to make a $100 profit.

These odds help you quickly understand the risk and reward associated with each bet.

How to Read Positive American Odds

When you see a positive number, like +150, this indicates how much profit you would make on a $100 bet if you win. Here’s how it works:

  • Example: If you bet $100 on a team with +150 odds, a win would pay out $150 in profit (plus your original $100, making the total payout $250).

This format is common when betting on the underdog. The higher the number, the less likely the team is expected to win, meaning a higher payout if they do.

How to Read Negative American Odds

Negative odds, like -120, show how much you would need to bet to make a $100 profit. These odds are typically used for favorites:

  • Example: If you bet $120 on a team with -120 odds, a win would yield a $100 profit (plus your original $120, making the total payout $220).

The larger the negative number, the more favored the team, and the lower the profit you’ll receive for a successful bet.

Why Are American Odds Useful?

American odds are popular in the U.S. because they make it easy to gauge the favorite and underdog in a matchup and to quickly understand the profit potential. They are especially useful for sports bettors because:

  • Risk and reward clarity: Positive and negative symbols quickly show bettors the level of risk.
  • Quick profit calculations: With a bit of practice, you’ll be able to calculate your potential payout in seconds.

Comparing American Odds with Other Odds Formats

While American odds are standard in the U.S., you may come across Decimal or Fractional odds, especially when betting internationally. Here’s a quick comparison:

  • Decimal Odds: Often used in Europe, these odds show total payout per dollar bet, which includes the original wager.
  • Fractional Odds: Common in the UK, these odds show profit relative to the stake in a fraction format.

Use this tool to convert American odds to other formats to simplify the process. This is especially useful for bettors comparing odds across different markets.

Decimal Odds

Decimal odds are the most commonly used odds format in Europe, Australia, and Canada. They are straightforward to understand and allow bettors to quickly see the total return on their wager, making them popular among both beginners and seasoned bettors. In this guide, we’ll break down how decimal odds work, how to read them, and how to calculate potential payouts.

What Are Decimal Odds?

Decimal odds show the total amount you will receive for every dollar wagered, including both your profit and your initial stake. Unlike American odds, decimal odds are always presented as positive numbers, typically with two decimal places.

Example:

  • If the odds are 2.50, and you bet $10, your total return (including your initial stake) would be $25.

Decimal odds make it easy to quickly calculate potential returns, as they directly display the multiplier for your stake.

How to Read Decimal Odds

The decimal number represents the total payout you receive per unit wagered. Here’s how it works:

  1. Decimal odds above 2.00 indicate the underdog, meaning the profit you stand to gain is higher than your initial stake.
  2. Decimal odds below 2.00 indicate the favorite, meaning your profit will be smaller than your initial stake.

Example:

  • Odds of 1.75: A $10 bet would return $17.50, meaning a $7.50 profit.
  • Odds of 2.50: A $10 bet would return $25, meaning a $15 profit.

Why Are Decimal Odds Useful?

Decimal odds are intuitive and allow for fast calculations, which is especially helpful for bettors who want to compare odds on multiple outcomes. Their simplicity makes them popular on betting platforms and among users who want a quick, easy way to see potential returns.

Benefits of Decimal Odds:

  • Quickly calculate total returns: No need to perform multiple steps; the odds value directly multiplies by your stake to show potential payouts.
  • Easy comparison across bets: Seeing odds as multipliers helps bettors immediately identify which option offers the higher payout.

Comparing Decimal Odds with Other Odds Formats

Decimal odds are commonly preferred in European and Canadian markets, but you may come across Fractional or American odds. Here’s a quick comparison:

  • American Odds: Often used in the U.S., with odds shown as positive and negative numbers to indicate profit on a $100 bet or the amount needed to make $100.
  • Fractional Odds: Common in the UK, representing profit relative to the stake in a fraction format (e.g., 3/2 or 1/4).

Decimal odds offer simplicity, especially for bettors interested in the total payout rather than only the profit. Use this tool to convert decimal odds into other formats. It's especially useful when comparing betting odds across markets.

Fractional Odds

Fractional odds are one of the oldest and most traditional odds formats, especially popular in the UK and in horse racing. While they might look confusing at first, they’re simple to read once you know how they work. In this guide, we’ll break down what fractional odds are, how to read them, and how to calculate your potential winnings.

What Are Fractional Odds?

Fractional odds represent the ratio of profit to the stake. These odds are shown as fractions (like 5/1 or 7/4) and reflect the amount of profit you would make relative to the amount you wager.

Example:

  • If you see odds of 5/1, this means that for every $1 you wager, you would make a $5 profit if you win. So, a $10 bet would yield a $50 profit, plus your original $10 stake for a total payout of $60.

Fractional odds are straightforward once you understand the concept of “stake to profit.”

How to Read Fractional Odds

In fractional odds, the first number represents the potential profit, and the second number represents the stake. Let’s break this down with examples:

  • Odds of 3/1: For every $1 you bet, you win $3 in profit.
  • Odds of 1/5: For every $5 you bet, you win $1 in profit.

Examples:

  • Odds of 7/2: A $2 bet would yield a $7 profit, for a total payout of $9.
  • Odds of 1/4: A $4 bet would yield a $1 profit, for a total payout of $5.

When the odds have a higher first number (like 5/1), the bet has a high payout because it’s considered a less likely outcome. When the first number is smaller (like 1/4), the payout is lower because the outcome is more likely.

Why Are Fractional Odds Useful?

Fractional odds are popular among traditional bettors, particularly in horse racing and British sports markets. Here’s why they remain widely used:

  • Simple to understand: They quickly show the profit-to-stake ratio, making it easy to see your return relative to your investment.
  • Directly shows underdog and favorite: Larger fractions indicate underdogs with high payouts, while smaller fractions (such as 1/3) indicate favorites.

Comparing Fractional Odds with Other Odds Formats

You might encounter Decimal or American odds, especially when betting internationally. Here’s a quick comparison:

  • Decimal Odds: Common in Europe and Canada, these odds show the total payout, including the original stake.
  • American Odds: Used mainly in the U.S., with positive or negative numbers to show profit on a $100 bet or the amount needed to make $100.

To convert fractional odds into other formats, you can use this odds converter tool, which is especially useful for comparing betting odds across markets.

Frequently Asked Questions

To convert American odds to decimal odds, use these formulas:

  • For positive odds (e.g., +200) Divide the odds by 100 and add 1 Decimal Odds = (American Odds / 100) + 1.

  • For negative odds (e.g., -150) Divide 100 by the absolute value of the odds and add 1 Decimal Odds = (100 / abs(American Odds)) + 1.

For example, +200 converts to 3.00, and -150 converts to 1.67. Decimal odds represent the total payout per dollar wagered, including your original stake.

To convert American odds to fractional odds:

  • For Positive American Odds (+):

    Fractional Odds = American Odds / 100

    Example: +200 converts to 200 / 100 = 2/1

  • For Negative American Odds (−):

    Fractional Odds = 100 / abs(American Odds)

    Example: -150 converts to 100 / 150 = 2/3

To convert decimal odds to American odds:

  • If Decimal Odds > 2.00:

    American Odds=(Decimal Odds − 1) × 100

    Example: 3.50 converts to (3.50 − 1) × 100 = +250

  • If Decimal Odds < 2.00:

    American Odds= −(100 / (Decimal Odds - 1))

    Example: 1.75 converts to −(100 / (1.75 - 1)) = -133.33

To convert decimal odds to fractional odds:

Fractional Odds = Decimal Odds - 1

Then express the result as a fraction in its simplest form.

Example:

  • Decimal odds of 3.50 convert to 3.50 - 1 = 2.50, which simplifies to 5/2.
  • Decimal odds of 1.75 convert to 1.75 - 1 = 0.75, which simplifies to 3/4.

To convert fractional odds to American odds:

  • For Fractional Odds ≥ 1/1 (Evens or Greater than 1):

    American Odds = (Numerator / Denominator) x 100

    Example: 5/2 converts to (5/2) x 100 = +250

  • For Fractional Odds < 1/1 (Less than 1):

    American Odds = -(Denominator / Numerator) x 100

    Example: 2/5 converts to -(5/2) x 100 = -250

To convert fractional odds to decimal odds:

Decimal Odds = (Numerator / Denominator) + 1

Example:

  • Fractional odds of 5/2 convert to (5/2) + 1 = 3.50.
  • Fractional odds of 1/4 convert to (1/4) + 1 = 1.25.