No Vig Calculator – Remove Vig & Find Fair Odds

Got odds from a sportsbook and want to know what they look like without the vig?

Enter both sides below. We’ll remove the bookmaker margin and show you the fair odds and no-vig probability so you can compare the price properly.

What Does a No Vig Calculator Actually Tell You?

A no vig calculator removes the bookmaker’s margin from a complete betting market. It shows how the odds would look if the implied probabilities were adjusted back to 100%.

That matters because the price on your sportsbook app is not automatically the fair price.

If you are comparing the same game across two or three sportsbooks, the difference between “book odds” and “fair odds” is usually what you actually want to see.

Our calculator gives you:

For example, a market priced at -110 / -110 has a total implied probability of about 104.76%.

The extra 4.76% is the overround.

Remove it and the market becomes 50% / 50%, with fair odds of +100 on both sides.

That is a much cleaner number to compare against the price another sportsbook is offering you.

How to Use the No Vig Calculator

If you are checking odds on your phone, you should be able to do this in seconds.

Take all the prices from the same market and enter them exactly as they appear.

For example:

Sportsbook market

Team A: -120
Team B: +100

Choose:

• 2-Way Market
• American Odds
• Enter -120 and +100
• Calculate Fair Odds

You will see the sportsbook margin, each side’s implied probability, the no-vig probability, and the fair price.

For football markets with Home / Draw / Away, switch to the 3-way setting.

The calculator also accepts decimal and fractional odds, so there is no need to manually convert prices first.

If you only need an odds conversion, use our Betting Odds Calculator instead.

Why Should You Remove Vig Before Comparing Sportsbook Odds?

Because comparing two sportsbook prices is not the same as comparing either price with fair value.

Say you have three apps open:

Book A: +125
Book B: +132
Book C: +140

Obviously, +140 pays the most if you win.

But that still does not answer the more useful question:

Is +140 actually a good price?

A no vig odds calculator gives you a market-based reference point.

If the fair odds come out around +115, +140 deserves attention.

If the fair odds are closer to +155, suddenly +140 does not look nearly as attractive.

This is why removing vig is useful for bettors who already shop around rather than automatically taking whatever price appears first.

You cannot control whether a last-minute goal, interception, injury, or bad bounce ruins the bet.

You can control the price you accept.

What Is Vig in Sports Betting?

Vig is the margin a sportsbook builds into its betting prices. It is also called juice, bookmaker margin, or overround.

The UK Gambling Commission also uses terms such as margin and over-round when discussing the mathematical advantage built into gambling products.

Here is the easiest way to see it.

A perfectly balanced two-way event would theoretically be:

50%
50%

But a sportsbook might offer:

-110
-110

Each -110 price implies approximately 52.38%.

So:

52.38% + 52.38% = 104.76%

The market is 4.76 percentage points above 100%.

That excess is the overround.

A vig calculator removes that excess and estimates what the prices look like underneath it.

How Does Our No Vig Calculator Remove the Bookmaker Margin?

The calculator first converts every price in the market into implied probability.

It then removes the amount above 100% using the vig-removal method you select.

The result is converted back into fair American, decimal, and fractional odds.

The important part is that we show you the method.

We do not hide the calculation behind a number labelled “true odds.”

Standard Proportional Method

The proportional method divides each implied probability by the total implied probability of the market.

For a balanced -110 / -110 market:

52.38% ÷ 104.76% = 50%

So the vig-free market becomes:

50% / 50%

This is the default method in our devig calculator because it is straightforward, quick to verify, and useful for many everyday sportsbook markets.

Power Method

The Power Method removes the overround differently.

Instead of reducing every probability proportionally, it adjusts them mathematically until the market totals 100%.

Why does that matter?

Because bookmaker margin is not necessarily distributed evenly between a heavy favorite and a big underdog.

In an uneven market, the Power Method and proportional method can therefore return slightly different fair odds.

That is expected.

It is also why we tell you which method produced the result.

2-Way No Vig Calculator

Use the 2-way setting when the market has only two possible betting outcomes.

Common examples include:

• Over / Under
• Yes / No player props
• Tennis match winner
• Point spreads
• Two-way moneylines
• Both teams to score: Yes / No

Suppose a sportsbook has:

Over 2.5: -115
Under 2.5: -105

You need both prices.

Entering only -115 would tell you its implied probability, but it would not tell you how much vig is built into the complete market.

For single-price probability conversion, use our Implied Probability Calculator.

For vig removal, use both sides.

3-Way No Vig Calculator

A 3-way no vig calculator needs all three outcomes because the bookmaker margin is spread across the complete market.

Football is the obvious example:

Home
Draw
Away

Suppose the decimal odds are:

Their implied probabilities are approximately:

Together:

104.41%

So the bookmaker margin is approximately:

4.41%

Using proportional vig removal, the market becomes roughly:

Now the three probabilities total 100%.

If you removed the draw and calculated only Home vs Away, you would be analysing a market that does not actually exist.

No-Vig Probability vs Implied Probability

Implied probability comes directly from one sportsbook price. No-vig probability adjusts all outcomes in the market to remove the bookmaker’s margin.

Take +150.

Its implied probability is:

40%

But that does not tell you whether the full market totals 102%, 105%, or 110%.

No-vig probability only makes sense after looking at the other outcomes too.

So:

One price → implied probability

Complete market → no-vig probability

That is why these calculators solve different problems.

You can use our Implied Probability Calculator when you simply want to turn odds into a percentage.

Use this no vig calculator when you want to estimate the fair market price.

Are No-Vig Odds the Same as “True Odds”?

No. No-vig odds are an estimate of fair market odds after bookmaker margin is removed. They are not proof of the actual probability that an event will happen.

This is one area where betting calculators often oversell what they are doing.

Imagine our calculator gives Team A a no-vig probability of 56%.

That does not mean Team A has a scientifically proven 56% chance of winning.

It means:

Based on the entered market prices and selected vig-removal method, the market-implied probability after removing margin is about 56%.

Your model could say 60%.

Another bookmaker could imply 54%.

A sharp exchange price could move again five minutes later.

That disagreement matters.

It is often where bettors start looking for value.

So BetBuzz24 uses terms such as no-vig probability, fair odds, and market-implied probability rather than pretending a calculator can reveal the future.

Why Can Two Fair Odds Calculators Give Different Answers?

Because there is more than one accepted way to remove vig.

This surprises people when they enter the same odds into two devig calculators and get slightly different results.

It does not automatically mean one calculator is broken.

The difference may simply come from the vig-removal method.

For a very balanced market, methods often give similar answers.

For a market with a strong favorite and large underdog, the gap can become more noticeable.

That is why our results show:

• the bookmaker margin
• the no-vig probability
• the fair odds
• the calculation method used

You can see how the result was reached instead of being asked to trust a mystery number.

How Can No-Vig Odds Help You Find Better Betting Prices?

No-vig odds are most useful as a benchmark.

Suppose a market is:

Favorite: -150
Underdog: +130

The raw implied probabilities are:

60.00%
43.48%

Total:

103.48%

So the overround is approximately:

3.48%

Using proportional vig removal, the fair market probabilities are roughly:

57.98%
42.02%

That converts to fair odds of about:

Favorite: -138
Underdog: +138

Now suppose another sportsbook is showing:

Underdog: +150

That is more interesting.

You are being offered +150 on something the vig-free market benchmark prices closer to +138.

That still does not make it an automatic bet.

But now you have something worth analysing.

No-Vig Price Is Not the Same as Positive EV

This distinction matters if your goal is profit rather than simply finding the sportsbook with the nicer-looking number.

A no-vig calculator estimates the fair market price.

An expected value calculation asks whether the price available to you is profitable based on the probability you believe is correct.

Those are different steps.

A useful workflow is:

1. Check the market odds

↓

2. Remove the vig

↓

3. Compare the fair market price with available sportsbook prices

↓

4. Decide whether your own probability estimate differs from the market

↓

5. Calculate expected value

↓

6. Think about stake size

If you have your own probability estimate, use our Betting Value Calculator or Expected Value Calculator.

If you then want to see a mathematically derived stake size, our Kelly Criterion Calculator handles the next step.

No-vig calculation belongs near the start of that process, not at the end.

Does Lower Vig Mean a Better Sportsbook Price?

Usually, a lower-margin market gives the bettor less pricing disadvantage overall, but that does not mean every individual price in that market is automatically the best available.

This is why simply finding “low vig” is not enough.

One sportsbook may have a lower overall market margin while another happens to offer a better price on the specific side you want.

If you already use several sportsbook apps, check the actual price.

The difference between:

-110
-105
+100

can look small on one bet.

Repeated across hundreds of bets, consistently getting the worse number becomes expensive.

Price discipline is one of the few parts of sports betting you can control before the game starts.

Worked Example: -110 vs -110

This is the classic vig example.

Book Odds

-110
-110

Raw Implied Probabilities

52.38%
52.38%

Total Implied Probability

104.76%

Bookmaker Margin

4.76%

No-Vig Probability

50.00%
50.00%

Fair Odds

+100
+100

The sportsbook has effectively moved both sides away from the fair 50/50 price.

Worked Example: -150 vs +130

Now look at a less balanced market.

Book Odds

Favorite: -150
Underdog: +130

Implied Probability

Favorite: 60.00%
Underdog: 43.48%

Total Implied Probability

103.48%

Bookmaker Margin

3.48%

Proportional No-Vig Probability

Favorite: approximately 57.98%
Underdog: approximately 42.02%

Fair Odds

Favorite: approximately -138
Underdog: approximately +138

This fair price is usually more useful than simply staring at -150 and +130 and trying to decide whether either “looks good.”

What a No Vig Calculator Cannot Tell You

A no vig calculator can remove bookmaker margin. It cannot tell you whether the underlying market itself is correct.

It cannot know:

• which team will win
• whether your model is better than the market
• whether an injury will be announced
• whether the line will move after you bet
• whether +EV today remains +EV at another price
• whether variance will go your way
• whether you should risk more money

Think of it as a pricing tool.

A very useful one.

But still a pricing tool.

If a calculator tells you something is “guaranteed value” simply because vig was removed, be skeptical.

Which Numbers Should You Actually Look At?

If you are using this on a phone while moving between sportsbook apps, you do not need to study every column.

Start with these three:

Bookmaker Margin

This tells you how much overround is built into the full market.

No-Vig Probability

This shows the market-implied probability after the selected method removes the vig.

Fair Odds

This gives you the cleanest number to compare with the price another sportsbook is offering.

The rest of the calculator is there so you can verify how those numbers were reached.

Related Betting Calculators

If you are analysing price rather than simply picking a winner, these BetBuzz24 tools work together:

• Betting Odds Calculator — convert American, decimal, and fractional prices
• Implied Probability Calculator — turn sportsbook odds into probability
• Betting Value Calculator — compare your probability estimate with the available price
• Expected Value Calculator — calculate the expected mathematical return of a bet
• Kelly Criterion Calculator — calculate a Kelly-based stake from your estimated edge

They answer different questions. That is more useful than having five calculators produce variations of the same number.

No Vig Calculator FAQs

What is a no vig calculator?

A no vig calculator removes the bookmaker margin from every outcome in a betting market and converts the adjusted probabilities into fair odds.

What is a devig calculator?

A devig calculator is another name for a no vig calculator. Both remove the sportsbook’s built-in margin from a market to estimate vig-free probabilities and fair odds.

What is a fair odds calculator?

A fair odds calculator estimates what betting prices would look like without bookmaker margin. The result is a market-based fair-price estimate, not a guaranteed prediction of the outcome.

What is bookmaker vig?

Bookmaker vig is the pricing margin built into sportsbook odds. It is also called juice, bookmaker margin, or overround.

Is the BetBuzz24 no vig calculator free?

Yes. You can use it without creating an account, entering a stake, or providing payment information.

Can I use the calculator for 3-way football odds?

Yes. Select 3-Way Market and enter Home, Draw, and Away odds. All three outcomes are required to calculate the bookmaker margin correctly.

Can I enter decimal odds?

Yes. The calculator accepts American, decimal, and fractional odds and returns fair prices in multiple formats.

Why do sportsbook probabilities add up to more than 100%?

Because the sportsbook usually builds a margin into the market. The amount above 100% is commonly referred to as the overround.

Are no-vig odds guaranteed to be accurate?

No. They estimate fair market odds after removing bookmaker margin. Different devig methods may produce slightly different results, and none can guarantee the actual probability of an event.

Which vig-removal method should I use?

The proportional method is a practical default for many common markets. The Power Method is useful when you want to see how another mathematical treatment distributes margin, particularly in uneven markets.

Can no-vig odds help identify value?

Yes, as a reference point. If the available sportsbook price is better than the no-vig market estimate, it may deserve further analysis. It does not automatically make the bet profitable.

Can a no vig calculator help me make a profit?

It can help you avoid comparing sportsbook prices blindly, but it cannot guarantee profit. Long-term results still depend on price, probability estimates, staking, market movement, and variance.