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NederlandsNo-Vig Fair Odds Calculator
Enter the odds on every side of a market to strip out the bookmaker's margin: see the vig, the fair probability of each outcome and the no-vig fair odds to compare with any other price.
| Outcome | Bookmaker odds | Implied | Fair chance | Fair odds | Fair decimal |
|---|---|---|---|---|---|
| Side A | -110 | 52.38% | 50.00% | +100 | 2.000 |
| Side B | -110 | 52.38% | 50.00% | +100 | 2.000 |
Fair odds divide each side's implied chance by the total, the standard proportional method. Compare them with another bookmaker's price to spot value.
The vig on common lines
Two-way lines, with the fair price of each side once the margin is removed.
| Line | Vig (hold) | Fair chance, side 1 | Fair odds, side 1 | Fair odds, side 2 |
|---|---|---|---|---|
| -110 / -110 | 4.55% | 50.0% | +100 | +100 |
| -105 / -115 | 4.50% | 48.9% | +104 | -104 |
| +110 / -130 | 3.98% | 45.7% | +119 | -119 |
| +150 / -170 | 2.88% | 38.8% | +157 | -157 |
| -200 / +170 | 3.57% | 64.3% | -180 | +180 |
| +300 / -400 | 4.76% | 23.8% | +320 | -320 |
A lower hold means a cheaper market. Reduced-juice lines such as -105 / -105 cut the margin to 2.38%.
Questions
What is the vig in betting?
The vig (vigorish, or juice) is the bookmaker's margin, built into the odds. On a -110 / -110 line both sides imply 52.38%, adding up to 104.76%: the extra 4.76% is the overround, and the book keeps 4.55% of the money on a balanced line.
How do you calculate no-vig odds?
Turn each side into its implied probability (1 ÷ decimal odds), add them up, and divide each side by the total so they sum to 100%. The fair odds are 1 ÷ that fair probability. This is the proportional method most bettors use.
What is a fair line?
The price with the margin taken out — what the odds would be if the bookmaker charged nothing. Betting at odds longer than the fair line (from a sharp book’s no-vig price) is a positive expected-value bet.
What is the difference between hold and overround?
Overround is how far the implied chances exceed 100% (4.76% on -110/-110). Hold is the share of all stakes the bookmaker expects to keep when money is balanced (4.55% on the same line): hold = 1 − 1 ÷ (1 + overround).
Does it work for three-way markets?
Yes: switch to 3-way for soccer 1X2 (home, draw, away) or any market with three outcomes. The same proportional method spreads the margin across all three.
Where to bet
Sportsbooks from casinos we've reviewed, with their licences and payment methods.
More free tools
18+Every bookmaker price carries a margin. Set a budget, and see our responsible gambling guide for free help.