No Vig Calculator
Remove the sportsbook margin from betting odds. Enter two or three decimal odds to calculate no vig probabilities, fair odds, bookmaker margin, and payout ratio.
Use two outcomes for spreads, totals, moneylines, tennis, or props. Add a third outcome for soccer 1X2 markets.
No Vig Results
| Outcome | Book Odds | Raw Implied | No Vig Probability | No Vig Odds |
|---|---|---|---|---|
| Side A | 1.91 | 52.36% | 50% | 2 |
| Side B | 1.91 | 52.36% | 50% | 2 |
Want to go beyond fair market odds? Compare these market probabilities with BetAnalytics match analysis.
Explore Match AnalysisHow to Remove Vig from Betting Odds
- Enter the decimal odds for every outcome in the market.
- Convert each price to raw implied probability with 1 / odds.
- Add the implied probabilities together to measure the sportsbook margin.
- Divide each raw probability by the total implied probability.
- Convert each adjusted probability back to odds. Those are the no vig odds.
The same method works for spreads, totals, props, moneylines, futures, and soccer 1X2 markets.
No Vig Formula
Raw Implied Probability = 1 / Decimal Odds
Probability Sum = Σ Raw Implied Probabilities
No Vig Probability = Raw Implied Probability / Probability Sum
No Vig Odds = 1 / No Vig Probability
Vig = Probability Sum - 1
2-Way and 3-Way Examples
2-Way Market: Spread or Total
Odds: 1.91 / 1.91
1/1.91 + 1/1.91 = 104.71%
Vig is 4.71%. After removing vig, each side has a 50.00% fair probability and fair odds of 2.00.
3-Way Market: Soccer 1X2
Odds: 2.10 / 3.50 / 3.80
47.62% + 28.57% + 26.32% = 102.51%
The bookmaker margin is 2.51%. No vig probabilities are normalized so the three outcomes sum to exactly 100%.
No Vig Odds vs Fair Odds
| Term | Meaning | How to Use It |
|---|---|---|
| No Vig Odds | Bookmaker odds after removing the margin proportionally. | Use as the market's baseline fair price. |
| Fair Odds | Odds that match a true probability with no margin. | Compare your model probability against the market baseline. |
| Value Price | A sportsbook price better than your fair odds estimate. | Check it with the Expected Value Calculator. |
BetAnalytics Workflow
Related Tools
Vig Calculator
Calculate sportsbook vig, hold, payout ratio, and fair odds
Overround Calculator
Analyze bookmaker margin for 2-way and 3-way markets
Implied Probability
Convert odds into raw and fair probabilities
Expected Value
Use fair probability to estimate whether a bet has value
Kelly Criterion
Size positive EV bets after you estimate your edge
Learn More
These topics will be covered in our upcoming Academy section. Check back soon for in-depth educational content.
Comparing Sportsbook Lines
Coming SoonUse no vig odds to compare market prices across books
Finding Value After Removing Vig
Coming SoonNo vig probability is a baseline for expected value analysis
Frequently Asked Questions
- What does no vig mean?
- No vig means the bookmaker margin has been removed from the odds. The resulting probabilities sum to 100%, showing the fair market view before sportsbook commission.
- How do you remove vig from odds?
- Convert each decimal odd into implied probability, add the probabilities together, then divide each probability by the total. The adjusted probabilities are no vig probabilities. Fair odds are 1 divided by each adjusted probability.
- Is no vig probability the true probability?
- No vig probability is the market price after removing the sportsbook margin. It is a useful baseline, but it is not guaranteed to be the true probability of the event.
- Can I use this for spreads and totals?
- Yes. Use two outcomes for point spreads, totals, moneylines, tennis, props, or any two-way market. Use the third field for soccer 1X2 or other three-way markets.
- What is the difference between no vig odds and fair odds?
- No vig odds are fair odds derived from the current market after removing bookmaker margin. In practice, bettors often use no vig odds as a market-implied fair price, then compare their own model to that price.
- Should I use no vig probability for Kelly staking?
- No vig probability can be a market baseline, but Kelly staking should use your own estimated win probability. If your estimate is higher than the no vig probability, the bet may have positive expected value.