Professional betting market analysis tool
No-Vig %
1.00%
No-Vig Odds
100.25
No-Vig %
99.00%
No-Vig Odds
1.01
For positive odds (+X):
Implied Probability = 100 / (X + 100)
For negative odds (-X):
Implied Probability = X / (X + 100)
No-Vig Probability = Implied Probability / (Sum of all Implied Probabilities)
If probability < 50%:
American Odds = (100 / probability) - 100
If probability > 50%:
American Odds = -100 / ((1 / probability) - 1)
You can find current betting odds from major sportsbooks like FanDuel Sportsbook. Look for the American odds format (e.g., +150, -120) for any betting market.
Tip: Odds are typically displayed next to each team/outcome in a matchup.
Note: Always include the + or - sign before the number.
The calculator will show you:
Use this to identify value bets where the bookmaker's odds are better than the true odds.