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No-Vig Calculator: Fair Odds Without the Vig
Enter both sides of a two-way market, or all three prices of a market with a draw, to see the vig and the fair, no-vig odds and probabilities. American, decimal, fractional and other odds formats.
What is a no-vig calculator?
A no-vig calculator removes the sportsbook's margin from a market to estimate the fair odds. Enter both sides of a two-way market, or all three prices of a market with a draw, in American, decimal, fractional or another format. It returns the vig percentage and each outcome's no-vig odds and probability. It divides each outcome's implied probability by the total, so the vig comes out in proportion to each outcome's probability.
Why use a no-vig calculator?
- See how much vig a market charges
- Get the fair odds and probability for each side
- Compare another sportsbook's price with the fair price
- Remove the vig from three-way soccer markets with a draw
- Enter odds as American, decimal, fractional or another format
How to use the no-vig calculator
- 1Choose the odds format you have, such as American (-110) or decimal (1.91)
- 2Pick 2 outcomes, or 3 outcomes for a market with a draw
- 3Enter the odds for each outcome of the same market
- 4Read the vig percentage and the no-vig odds and probability for each outcome
Example: removing the vig from -150 / +130
-150 has an implied probability of 60.00% and +130 has 43.48%, a total of 103.48%. The vig is 3.48%. Divide each side by the total: 60.00 / 103.48 = 57.98% and 43.48 / 103.48 = 42.02%. Those are fair odds of -138 for the favorite and +138 for the underdog.
How to remove the vig
Implied probability: for negative odds, |odds| / (|odds| + 100); for positive odds, 100 / (odds + 100); for decimal odds, 1 / odds.
Vig = the implied probabilities of every outcome added together, minus 100%.
No-vig probability = each outcome’s implied probability divided by the total. Convert it back to odds to get the fair price.
No-vig odds for common markets
The vig and the fair odds and probabilities for common two-way prices.
- -110 / -110: 4.76% vig, fair +100 / +100 (50.00% / 50.00%)
- -115 / -105: 4.71% vig, fair -104 / +104 (51.08% / 48.92%)
- -120 / +100: 4.55% vig, fair -109 / +109 (52.17% / 47.83%)
- -150 / +130: 3.48% vig, fair -138 / +138 (57.98% / 42.02%)
- -200 / +170: 3.70% vig, fair -180 / +180 (64.29% / 35.71%)
- -300 / +240: 4.41% vig, fair -255 / +255 (71.83% / 28.17%)
No-vig odds for three-way markets
A soccer moneyline has three outcomes: home, draw and away. Remove the vig from all three prices at once, so the fair probabilities add up to 100%.
| Market | Home / draw / away odds | Vig | Fair odds | Fair probabilities |
|---|---|---|---|---|
| Close match | +110 / +240 / +250 | 5.60% | +122 / +259 / +270 | 45.09% / 27.85% / 27.06% |
| Home favorite | -120 / +260 / +330 | 5.58% | -107 / +280 / +354 | 51.66% / 26.31% / 22.03% |
| Big favorite | -300 / +450 / +800 | 4.29% | -256 / +474 / +839 | 71.91% / 17.43% / 10.65% |
No-Vig Calculator FAQ
Understanding Vig
Convert each side to its implied probability, add the two, and divide each side by the total. -150 is 60.00% and +130 is 43.48%, a total of 103.48%. Dividing gives 57.98% and 42.02%, which are fair odds of -138 and +138.