Arbitrage Calculator

Category: Gambling
- March 31, 2025
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Calculate potential arbitrage opportunities across different bookmakers. Enter odds for two or three outcomes to determine if a guaranteed profit is possible.

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Arbitrage Opportunity
Total Market Percentage
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Profit Margin
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Guaranteed Profit
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Optimal Staking Plan

How This Works

About Arbitrage Betting

Arbitrage betting (also known as "arbing") is a technique where you place bets on all possible outcomes of an event at odds that guarantee a profit regardless of the result.

When the total implied probability (market percentage) is less than 100%, there's an opportunity for arbitrage.

How to Use This Calculator

  1. Select the bet type (2-way or 3-way)
  2. Enter the odds from different bookmakers for each possible outcome
  3. Input your total investment amount
  4. Click "Calculate Arbitrage" to determine if there's an arbitrage opportunity
  5. If an opportunity exists, the calculator will show how to distribute your stakes for a guaranteed profit

Understanding the Results

  • Market Percentage: The sum of implied probabilities. Below 100% indicates arbitrage potential.
  • Profit Margin: The percentage return on your investment.
  • Guaranteed Profit: The amount you'll profit regardless of outcome.

Formula Used

Implied Probability: \( \text{Implied Probability} = \frac{1}{\text{Decimal Odds}} \)

Market Percentage: \( \text{Market Percentage} = (\text{Implied Probability}_1 + \text{Implied Probability}_2 [+ \text{Implied Probability}_3]) \times 100 \)

Profit Margin: \( \text{Profit Margin} = (1 - \frac{\text{Market Percentage}}{100}) \times 100 \)

Stake Distribution: Each stake is proportionally allocated based on the inverse of the odds to cover all outcomes and ensure equal returns.

What Is the Arbitrage Calculator?

The Arbitrage Calculator is a simple online tool that helps you find opportunities for guaranteed profit when betting on sports or events across multiple bookmakers. It checks if the combined odds from different outcomes allow you to place bets in a way that ensures a return, regardless of the result.

By comparing odds for two-way (e.g., win/loss) or three-way (e.g., win/draw/loss) outcomes, this tool shows you how to divide your investment so that your profit is guaranteed — a strategy often called "arbitrage betting" or "arbing."

How It Works

To determine if an arbitrage opportunity exists, the calculator checks whether the total market percentage is below 100%. If it is, the tool calculates how to spread your total stake across all outcomes to guarantee a profit.

How to Use the Calculator

  1. Select your bet type: 2-way (win/loss) or 3-way (win/draw/loss).
  2. Enter the odds for each outcome from different bookmakers.
  3. Choose the format of the odds: decimal, American, or fractional.
  4. Set your total investment amount.
  5. Click the "Calculate Arbitrage" button.

What You'll See

  • Market Percentage: The combined implied probabilities. Below 100% indicates a profit opportunity.
  • Profit Margin: The percentage return on your total investment.
  • Guaranteed Profit: The exact dollar amount you can earn no matter the outcome.
  • Staking Plan: A breakdown of how to distribute your funds across all outcomes.

Why Use This Tool?

This calculator removes the guesswork and math from arbitrage betting. Whether you're just getting into betting strategies or you're experienced, it can help you:

  • Identify real arbitrage opportunities instantly
  • Avoid risky bets where no profit is possible
  • Manage your bankroll efficiently

Comparison to Other Tools

While the Arbitrage Calculator focuses on betting strategies, it shares a core principle with other optimization tools:

  • Diablo 3 Gem Calculator: Helps players choose the best gem upgrades for optimal performance, just like this calculator finds the best betting combinations.
  • Blox Fruits Calculator: Assists in building efficient fruit mastery paths, similar to how this tool helps plan profitable bets.
  • Golf Handicap Calculator: Tracks player performance over time, just as this calculator tracks and improves betting outcomes.

FAQ

What does "arbitrage" mean?

Arbitrage is a strategy that takes advantage of different odds offered by bookmakers to secure a profit by betting on all possible outcomes.

Can I lose money using this calculator?

No — if the calculator shows an arbitrage opportunity, following the staking plan will result in a guaranteed profit. However, if the market percentage is over 100%, there's no profit potential.

What if the odds are in different formats?

You can choose between decimal, American, and fractional odds. The calculator automatically converts them to find the correct implied probabilities.

Is this tool useful for beginners?

Yes. It’s user-friendly and doesn’t require prior knowledge of betting math. It’s perfect for anyone interested in maximizing returns and minimizing risk.

Summary

The Arbitrage Calculator is a helpful tool for sports bettors who want to spot risk-free profit opportunities. With clear input options, automatic calculations, and a step-by-step staking guide, it simplifies the betting process while offering valuable insights. It’s a practical companion whether you're optimizing Diablo 3 gem stats or refining your Blox Fruits builds—every smart decision starts with the right tool.