Every sportsbook price has a hidden tax baked in, and learning to remove it is a rite of passage for serious bettors. That tax is the vig, and stripping it out reveals the no-vig line, the book’s honest estimate of who wins. This guide explains the vig and hold in plain English, works a real example, and links you to a free no-vig calculator and printable worksheet so you can find the fair price on any market.
What the Vig and Hold Are
The vig, also called juice or hold, is the margin a sportsbook charges for taking your action. It shows up as odds that imply more than 100 percent total probability across a market. On a classic -110 versus -110 spread, each side implies about 52.4 percent, adding to 104.8 percent. That extra 4.8 percent is the hold, and it is why you must win more than half your -110 bets just to break even.
How to Remove the Vig
Removing the vig is simple arithmetic. Convert each side of a two-way market to its implied probability, which is 1 divided by the decimal odds. Add the two probabilities together, then divide each one by that total. The results are the no-vig probabilities, which now sum to exactly 100 percent. Take the inverse of each and you have the fair odds, the price with no margin attached.
A Worked Example
Take a moneyline of -150 on the favorite and +130 on the dog. In decimals that is 1.67 and 2.30, for implied probabilities of 60.0 and 43.5 percent, a total of 103.5 percent. The hold is that 3.5 percent above 100. Divide each side by 1.035 and the no-vig probabilities become about 57.98 and 42.02 percent, which convert to a fair line of roughly -138 and +138. Anything longer than that at another book is value.
Try It: No-Vig & Hold Calculator
You do not need to do this longhand. Our free no-vig and hold calculator takes both prices and instantly returns the sportsbook’s hold, the total implied probability, and the no-vig probability and fair odds for each side. Enter American or decimal odds and read the fair line straight off the screen.
Why No-Vig Odds Are So Useful
No-vig odds from a sharp, low-margin book are among the best public estimates of an outcome’s true probability. Sharp bettors treat them as a benchmark: when a softer book hangs a longer price than the fair no-vig line, the difference is expected value. Removing the vig also lets you compare two books cleanly, since each one hides a different amount of margin in its posted numbers.
Shop for a Lower Hold
Not all holds are equal. A market with a 2 to 3 percent hold leaves far more on the table for you than one at 6 or 7 percent, so comparing the hold across books before you bet is money in your pocket over a season. Reduced-juice books and major markets like NFL sides usually carry the smallest holds, while props and longshots carry the most.
Free Printable No-Vig Worksheet
Prefer pen and paper? Download the free printable no-vig and hold worksheet to log both prices, add up the implied probabilities, and calculate the hold and fair line step by step.
Download the No-Vig Worksheet (PDF)
The Bottom Line
The vig is how sportsbooks make money, and stripping it out is how you learn what a bet is really worth. Convert, add, divide, and invert, or just let the calculator do it, and you will always know the fair line before you wager. As always, bet responsibly and within your means.
