Vig Remover

Strip the book's margin off a 2-way line. Enter both sides at the price you see and get the vig-free probability and fair odds — the closest estimate of what the book actually believes will happen.

Odds format
Both sides of the line
Implied: 52.38%
Implied: 52.38%
Vig-free probabilities
Sportsbook vig
4.76%
Implied total: 104.76%
Side A — fair
50.00%
+100 · 2.00
Side B — fair
50.00%
+100 · 2.00
Read the guide

Closing Line Value: The Only Metric That Actually Matters

Why beating the close is the cleanest signal that your bets are +EV — and how vig-removed probabilities feed into spotting it.

Read it
Related tools
Parlay Calculator
Multiply odds across legs.
Implied Probability
Convert odds to %.
Hedge Calculator
Lock in profit on a parlay.
Kelly Criterion
Optimal bet size for your edge.
Bracket Generator
Build a tournament bracket.
Made To Parlay

We think in parlays. Multi-leg bets where every leg has to hit. The same logic powers our app: every day is a parlay of habits, and the streak only counts if every leg cashes.

See the app

Vig remover FAQ

What is the vig?

The vig (also called juice or vigorish) is the sportsbook's built-in margin. On a coin-flip line priced at -110 each side, both implied probabilities sum to 104.8% — that 4.8% over 100% is the vig. The book wins it on the average bet over time, regardless of who wins individual games.

How does removing the vig work?

Convert both sides to implied probability (1 / decimal odds). Sum them — the total exceeds 100% by the vig amount. Divide each implied probability by that sum to get the vig-free probability. Vig-free probabilities always sum to exactly 100%.

Why does vig-free probability matter?

Vig-free probabilities are the closest you can get to the book's *actual* opinion of each outcome. If you have your own model that disagrees with the book, the gap between your number and the vig-free number is your edge. The straight implied probability (with the vig baked in) overestimates the true probability and hides edges.

What vig should I expect at a typical book?

Standard NFL/NBA spreads and totals: ~4.5–5% vig (priced -110 / -110). Moneylines on close games: ~4–5%. Player props and SGPs: often 8–15% or higher. Futures: sometimes 20%+ vig built in. Sharper books like Pinnacle and Circa run noticeably lower vig than retail US apps.

Is this just for 2-way markets?

This calculator handles 2-way markets — most spreads, totals, moneylines on US sports. For 3-way markets like soccer (where draw is a real outcome), the same math extends: sum all three implied probabilities and divide each by the sum. We may add a 3-way mode in the future.