Vig calculator
Enter the odds on each side of a bet. The calculator shows the book's margin (vig, juice or hold): the share of the money bet on that market the book expects to keep.
What the vig is
The vig is what a sportsbook charges to take your bet. It isn't a fee you see; it's built into the odds. On a coin flip both sides should pay +100. At most books both sides are -110, so a winning $110 bet returns $100 profit, and the book's edge comes from the difference.
hold = 1 − 1 / Σ (1 / decimal odds)
Worked example: -110 / -110
Each -110 side implies 52.38%. Together that's 104.76%, so the hold is 1 − 1 / 1.0476 = 4.55%. If the book takes equal money on both sides, it keeps about 4.5 cents of every dollar bet, whichever side wins.
Typical margins
| Market | Usual odds | Hold |
|---|---|---|
| Standard spread or total | -110 / -110 | 4.55% |
| Reduced juice | -105 / -105 | 2.38% |
| Low-margin main line | -104 / -104 | 1.92% |
Parlays carry far more, because the margin multiplies with every leg (parlay calculator). The lower the margin, the less a bettor has to overcome. To see a market's odds with the cut taken out, use the no-vig calculator.
Questions
What is the vig on -110 odds?
On a two-way market priced -110 on both sides, the vig (hold) is 4.55%: the implied chances add to 104.76%, and 1 - 1/1.0476 = 4.55%.
Is vig the same as juice and hold?
Yes. Vig, vigorish, juice and hold all describe the margin built into a sportsbook's odds.
How do I find low-vig odds?
Compare the same market across several books: the best price on each side often comes from different books, and taking the best price lowers the margin you pay. An odds comparison board does that for you.
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Updated 2026-10-26