Value Bet Calculator
Identify value bets by calculating expected value (EV). Our free value bet calculator helps you find profitable betting opportunities where the odds are higher than the true probability. Enter your estimated probability and bookmaker odds to see if a bet has positive expected value. No registration required.
Use the free calculator below to find value bets.
Value Bet Calculator
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How It Works
A value bet occurs when the bookmaker's odds are higher than the true probability suggests they should be. This creates positive expected value (EV).
How Value is Calculated:
First, calculate expected value:
EV = (True Probability × Bookmaker Odds) - 1
EV% = EV × 100%
Calculate expected profit:
Expected Profit = Stake × EV
If EV > 0, it's a value bet!
Example:
If you bet $100 at odds of 2.50, and your true probability is 45%:
- EV = (0.45 × 2.50) - 1 = 1.125 - 1 = 0.125 (12.5%)
- Expected Profit = $100 × 0.125 = $12.50
- Since EV > 0, this is a value bet!
Value Bet Calculator Examples
Real-world examples of value bet calculations using actual betting scenarios.
Example 1: Strong Value Bet
Example 2: Moderate Value Bet
Example 3: No Value Bet
How to Use the Value Bet Calculator
Enter Stake
Enter the amount you want to bet.
Enter Bookmaker Odds
Enter the decimal odds offered by the bookmaker.
Enter True Probability
Enter your estimated true win probability as a percentage. This should be based on your analysis, not the bookmaker's implied probability.
Analyze Results
Check the expected value (EV). If EV > 0, it's a value bet. The higher the EV, the better the value.
How the Value Bet Calculator Works
Value betting identifies opportunities where bookmaker odds are higher than the true probability suggests, creating positive expected value.
Formula:
Expected Value (EV) = (True Probability × Bookmaker Odds) - 1
EV% = EV × 100%
Expected Profit = Stake × EV
Value Bet Criteria:
- EV > 0: Value bet - positive expected value
- EV = 0: Break-even bet
- EV < 0: No value - negative expected value
Understanding Expected Value:
Expected value shows the average profit per bet over the long term. A positive EV means you'll profit over many bets, even if individual bets may lose.
Example: If true probability is 45% and bookmaker offers 2.50 odds, EV = (0.45 × 2.50) - 1 = 0.125 (12.5% positive value).
Frequently Asked Questions
A value bet occurs when the bookmaker's odds are higher than the true probability suggests, creating positive expected value (EV). This means the bet will be profitable over the long term.
True probability is your own assessment based on research, statistics, and analysis. It should reflect what you believe the actual chance of winning is, not the bookmaker's implied probability.
Any positive EV is good, but typically 5-10% EV is considered strong value. Higher EV means better value, but be careful - very high EV might indicate your probability estimate is too optimistic.
No, positive EV doesn't guarantee individual bet wins. It means you'll profit over many bets in the long term. Individual bets can still lose, but the average will be profitable.
The more accurate your probability estimates, the better your value betting will work. Overestimating probabilities leads to false value bets. Be conservative and realistic with your estimates.
Yes, our value bet calculator is completely free to use. No registration required, no hidden fees.