No-Vig Calculator: Fair Odds With the Juice Removed
This no-vig calculator strips the sportsbook’s built-in fee out of any betting line: enter the American odds on each side of a market and it returns the fair (vig-free) probabilities, the fair odds each side would carry with no juice, and exactly how much vig you are paying. It handles two-way markets like spreads and totals as well as three-way soccer markets with a draw.
How to Use the No-Vig Calculator
Enter the American odds for both sides of the market exactly as your sportsbook lists them, and add the draw price only when the market genuinely has three outcomes, like a soccer match result. The calculator converts each price to its implied probability, shows how far the total runs above 100%, and renormalizes everything back to a fair 100% market.
- Implied (with vig): what each price says about the outcome’s probability, including the book’s fee. These columns always add up to more than 100%.
- Fair (no vig): the same probabilities with the fee stripped out and rescaled to total exactly 100%. This is the market’s honest opinion of the game.
- Fair odds: the American price each side would carry if the book charged nothing. Compare these to the posted prices to see what you are really paying.
A Worked Example: The Standard -110 / -110 Market
A standard point spread priced at -110 on both sides implies 52.38% for each team, a total of 104.76%. That extra 4.76% above a fair 100% market is the overround, the sportsbook’s built-in margin. Remove it and each side is exactly 50%, which means the fair price on both sides of a -110 / -110 spread is +100. Every cent between +100 and -110 is what you pay the book for taking the bet.
Three-way markets hide more vig than two-way markets, which is why the draw input matters. A soccer match priced -120 / +260 / +240 implies 54.55%, 27.78%, and 29.41%, a total of 111.73%. Fair, vig-free probabilities are 48.82%, 24.86%, and 26.32%. Normalizing only the two team prices, as a two-way tool would, badly overstates both teams because the draw’s share of the market goes missing.
Why Fair Odds Are the Number That Matters
Fair odds tell you what the market actually believes, which makes them the honest baseline for every betting decision. Posted prices mix two things together: the market’s probability estimate and the book’s fee, or vigorish. Until you separate them you cannot tell whether a line is generous or expensive. Comparing one book’s posted price to the no-vig consensus across several books is the core of line shopping, and it is the same vig-removal math we use ourselves: every market-implied probability we publish on picks and live boards is quoted with the vig removed and attributed to the market, never dressed up as our own prediction.
Related Betting Tools
The betting odds calculator handles the payout and probability math for a single price, and the line shopping board shows you the best posted price on every side across the books we track, so you keep more of the fair value this calculator reveals. The full betting tools hub collects every calculator and live board in one place.
Play Safe: Gambling should be fun, not stressful. Set limits, stick to your budget, and never chase losses. If you or someone you know has a gambling problem, call 1-800-MY-RESET or visit ncpgambling.org. For more resources, see our Responsible Gambling page.
Frequently Asked Questions
Quick answers to the questions bettors ask most about vig, fair odds, and how to read this calculator’s output.
What does the vig actually cost me?
On a standard -110 / -110 spread the market totals 104.76%, so the book is charging 4.76 points of overround, roughly a 4.5% hold on the money it takes in. You pay it on every bet regardless of outcome, which is why beating the vig is the first bar any betting process has to clear.
Why do the implied probabilities add up to more than 100%?
Because the book prices both sides slightly worse than fair, and those extra percentage points are its margin. A fair market totals exactly 100%; everything above that is the vig, and this calculator shows you the exact number for any market you enter.
Are no-vig odds the true probability of the game?
No. They are the market’s estimate with the fee stripped out, which makes them a much sharper reference than the posted price, but still an opinion. Markets can be wrong; fair odds just tell you what the market believes without the book’s margin muddying the number.
Does every market carry the same amount of vig?
No. Major-market spreads and totals usually run near -110 / -110, while player props, futures, and parlays carry noticeably more juice. Running unfamiliar markets through a no-vig calculator before betting them is the quickest way to see what you are being charged.