No Vig Calculator
Calculate the true odds and probabilities without the bookmaker's vigorish (vig). Input the odds from both sides of a two-way market to see the fair odds and the implied probabilities.
Published by:
isCalculator Editorial Team
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How to use this tool?
This calculator removes the bookmaker's vigorish (vig) from a two-way market, giving you the true "fair" odds and implied probabilities for both sides.
- Enter American odds for Side A in the first field (e.g.,
-110or+150). Do not include the plus sign for positive odds; the input accepts positive and negative numbers. - Enter American odds for Side B in the second field (e.g.,
-110or+150). - Click "Calculate No Vig Odds" or press Enter on your keyboard.
- View the results:
- No Vig Probability A/B – The fair implied probability for each side (sums to 100%).
- No Vig Odds A/B – The corresponding American odds without the bookmaker's margin.
Note: Both odds must be non-zero numbers. If you see an error, check that you entered valid American odds (e.g., -110 or +200). The calculator automatically converts odds to implied probabilities, normalizes them, and converts back.
Previous Results
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Frequently Asked Questions
Vigorish, or vig, is the commission a bookmaker charges on bets. It ensures they profit regardless of the outcome.
Enter the American odds for both sides of a two-way market (e.g., -110 for both sides). The calculator will remove the vig and show the true probabilities and fair odds.
That's fine. The calculator works for any combination of positive and negative American odds.
