EV Betting Calculator

Calculate the expected value (EV) of sports bets to identify profitable betting opportunities.

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About This Tool

This free EV betting tool helps sports bettors calculate the expected value of their wagers. By inputting the odds format (American, Decimal, or Fractional), the probability of winning, and the stake amount, the tool computes whether a bet has positive or negative expected value. Positive EV indicates a profitable bet in the long run, while negative EV suggests the bet is unfavorable. The tool supports multiple odds formats and provides clear visual feedback with detailed breakdowns of potential profit/loss.

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How to Use

Select your preferred odds format (American, Decimal, or Fractional).
Enter the odds offered by the sportsbook.
Input your estimated probability of winning (as a percentage).
Enter your stake amount.
Click 'Calculate EV' to see the expected value, potential profit/loss, and recommendation.
Use the 'Clear' button to reset all fields.

Frequently Asked Questions

Find Quick Answers

What is expected value (EV) in betting?

Expected value is a mathematical calculation that shows the average amount you can expect to win or lose per bet if you placed the same bet repeatedly. Positive EV means the bet is profitable long-term, while negative EV means it's unprofitable.

How accurate is this EV calculator?

The calculator provides precise mathematical calculations based on the inputs you provide. The accuracy depends on your estimated probability - the tool will give you the correct EV based on whatever probability percentage you enter.

What odds formats are supported?

The tool supports American odds (e.g., +150, -200), Decimal odds (e.g., 2.50, 1.80), and Fractional odds (e.g., 3/1, 1/2). You can select your preferred format using the dropdown menu.

Do I need to create an account to use this tool?

No, this is completely free to use with no account required. All calculations happen directly in your browser.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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