No Vig Calculator
Remove Juice | Fair Odds
Remove vigorish (juice) from sports betting odds to find true fair odds and implied probability. Find positive expected value (+EV) bets instantly.
No Vig Calculator: Remove Juice and Find +EV Bets Like a Professional Bettor
After a decade of professional sports betting, arbitrage trading, and odds compiling across every major sport — from NFL and NBA to EPL tennis and UFC — the single most important tool in my arsenal is the no vig calculator. Vigorish (or “juice”) is the hidden fee sportsbooks charge on every bet. Understanding how to remove it reveals the true implied probability of an event and, more importantly, identifies where the sportsbook has mispriced a market — your path to long-term profitability.
🎯 Expert Insight: Every professional bettor removes vig before placing any wager. The posted odds are not the true odds — they are the true odds plus the bookmaker’s profit margin. A no vig calculator strips away that margin, showing you the real probability. When your calculated fair probability is higher than the implied probability from the book’s odds, you’ve found positive expected value (+EV). That’s how professionals beat the books over the long run.
What Is Vigorish (Juice) and Why Remove It?
Vigorish (vig or juice) is the commission sportsbooks charge for accepting a bet. In a standard -110/-110 moneyline, the implied probability of each outcome is 52.38% — but the true probability totals 104.76%, meaning the book has a 4.76% built-in edge. A no vig calculator removes this edge to reveal the true fair odds and probabilities.
Implied Probability = 1 / Decimal Odds (or American to Decimal conversion)
Total Vig = Implied Probability A + Implied Probability B – 1
Fair Probability = Implied Probability ÷ (1 + Total Vig)
Fair Decimal Odds = 1 ÷ Fair Probability
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How to Use This No Vig Calculator
- American Odds Mode: Enter the two American odds (e.g., -110 for both sides of a point spread, or -150/+130 for a moneyline). The calculator removes juice and shows fair odds and probabilities.
- Decimal Odds Mode: Enter decimal odds (e.g., 1.91, 2.10). Perfect for non-US sportsbooks and exchanges.
- Results: The calculator shows total vigorish percentage, fair probabilities for each outcome, and whether either side represents a positive EV opportunity.
| Sport/Market | Typical Juice | Example Odds | Fair Odds After Removing Vig |
|---|---|---|---|
| NFL Point Spread (standard) | 4.76% | -110 / -110 | +100 / +100 (2.00 decimal) |
| NBA Moneyline (favorite) | 3-5% | -200 / +170 | approx -185 / +185 |
| MLB Run Line | 4.5-5.5% | -115 / -105 | approx +100 / +100 |
| UFC Main Event | 5-8% | -150 / +130 | approx -140 / +140 |
| Soccer 1X2 (three-way) | 8-12% | 2.10 / 3.20 / 3.40 | Higher vig, remove individually |
Real-World Examples — Finding +EV Bets
Example 1 — Standard NFL Spread: Both sides at -110. Calculator shows 4.76% vig, fair odds +100 (2.00 decimal). No edge on either side — pass.
Example 2 — Mispriced NBA Moneyline: Book A offers -200/+170, Book B offers -185/+185. Using calculator on Book A odds: total vig ~6.2%, fair odds ~ -185/+185. Book B’s +185 matches fair value — no edge. But if a third book offers +195 on the underdog, that’s +EV because the true fair probability (from removing vig) is higher than the implied probability of +195.
Example 3 — Arbitrage Opportunity: If you find odds on two different books where the combined implied probability is under 100% (e.g., Book A +110, Book B +110 on opposite sides), you have a true arbitrage — guaranteed profit regardless of outcome. This calculator helps identify these rare opportunities.
How to Find Positive Expected Value (+EV) Bets
A positive EV bet exists when the implied probability of the sportsbook’s odds is lower than your calculated fair probability from the no vig calculator. Example: Calculator shows fair probability for Team A at 55% (fair odds -122). If a book offers odds of +120 for Team A, the implied probability is only 45.5% — significantly lower than the true 55% — creating a 9.5% positive EV edge. Professional bettors build models to identify these discrepancies systematically.
EV = (Fair Probability × Decimal Odds) – 1
Example: Fair Prob 55% (0.55) × Decimal Odds 2.20 (+120) = 1.21 – 1 = +21% EV
For authoritative odds data and industry standards, consult Sportsbook Review’s No Vig Guide for comprehensive resources.
Common Mistakes Bettors Make
- Ignoring vig entirely — betting -110/-110 thinking it’s a coin flip when it’s actually 47.6% vs 52.4%
- Not comparing across multiple sportsbooks — different books charge different vig; always find the lowest juice
- Confusing implied probability with true probability — always remove vig before evaluating a bet’s value
- Overlooking three-way markets — soccer, hockey, and boxing have higher vig and require full market normalization
Frequently Asked Questions (FAQs)
A no vig calculator removes the sportsbook’s commission (juice) from betting odds to reveal the true implied probability and fair odds of an event. This allows bettors to identify positive expected value opportunities.
First convert all odds to implied probabilities. Sum the probabilities and subtract 1 to get the vig percentage. Then divide each implied probability by (1 + vig) to get fair probabilities. Convert back to odds using 1 ÷ fair probability.
Standard point spreads: 4.76% (-110/-110). Moneylines: 3-8% depending on how sharp the line is. Futures and parlays: 10-30%+. Always remove vig to see true value.
Compare a book’s implied probability (after removing vig) against your own model’s probability or against the consensus fair odds from multiple books. If the book’s odds are better than fair, you have +EV.
Yes. When the combined implied probabilities from two different books total less than 100% (after converting to decimal odds), you have a guaranteed arbitrage profit. This calculator helps identify those opportunities by showing you fair value benchmarks.
American odds show favorites with a minus sign (e.g., -110) and underdogs with a plus sign (e.g., +130). Decimal odds show total payout including stake (e.g., 1.91 = $1.91 return on $1 stake). Both are converted to implied probability using standard formulas.
Final Thoughts: Remove the Juice, See the Truth
A no vig calculator is the foundation of serious sports betting analysis. Without removing vigorish, you’re making decisions based on distorted probabilities — like trying to navigate with a broken compass. Professional bettors, sharp sportsbooks, and trading syndicates all remove vig before placing any significant wager. Use this tool before every bet, track your results, and focus on finding positive EV opportunities rather than just picking winners. That’s the path to long-term profitability.