No-Vig Calculator: Remove the Juice & Find Fair Odds (2026)

Picture this: you're scrolling through NBA moneyline odds and see Lakers -180 / Celtics +155. That looks like a Lakers-heavy market — but how heavy, exactly? And more importantly, are those odds actually fair?

Here's the thing most bettors miss: those odds don't add up to 100%. The sportsbook has baked in its commission — the vig (also called juice) — so the probabilities sum to roughly 104-105%. That extra 4-5%? That's the book's profit margin, and it comes straight out of your pocket.

In 2026, with the sports betting market more competitive than ever, understanding where the vig hides is the difference between betting blind and betting smart. The no-vig calculator below strips out the bookmaker's margin and shows you the true fair odds — for 2-way, 3-way, and even 4-way markets.

TL;DR — Fair Odds in 30 Seconds

Quick Reference Table

When to Use This Calculator

• Before placing any bet — check if the odds carry more vig than average
• Comparing sportsbooks — the book with lower vig gives you better value
• Value betting — compare your model's probability to the fair (no-vig) probability
• CLV tracking — measure whether you beat the closing no-vig line
• Understanding 3-way markets — soccer win/draw/loss has hidden vig distributed across 3 outcomes

What Is a No-Vig Calculator?

A no-vig calculator takes the odds a sportsbook offers, strips out the built-in commission (vig), and reveals the true implied probability and fair odds for every outcome.

Think of it like this: a supermarket sells a product for $10. The wholesale cost is $7. The $3 difference is their margin. A no-vig calculator is like knowing the wholesale price — it tells you what the odds should be without the bookmaker's markup.

What Does "Vig" Mean in Sports Betting?

Vig (short for vigorish, also called juice) is the commission a sportsbook charges on every bet. It's not listed as a separate fee — instead, it's baked directly into the odds.

The classic example: a coin flip has exactly 50/50 probability, so fair odds would be +100/+100 (decimal 2.000/2.000). But a sportsbook offers -110/-110 (1.909/1.909) — both sides pay slightly less than they "should." The difference? That's the vig.

Every time you place a bet with vig-inflated odds, you're paying a hidden tax. On a single bet it's small. Over thousands of bets, it compounds into serious money. Speaking of taxes — the vig isn't the only cost eating your profits; check out the gambling tax changes in 2026 to see how the new federal rules impact your bottom line.

Vig by Market Type

No-Vig vs Fair Odds — Is There a Difference?

Technically, no. "No-vig odds" and "fair odds" mean the same thing: odds that reflect the true probability of an outcome with zero bookmaker margin. You'll also hear them called:

• True odds — what the odds "should" be
• No-juice line — same as no-vig, different slang
• Fair price — common in sharp betting circles

The key idea: fair odds always sum to exactly 100% implied probability. If the implied probabilities add up to more than 100%, there's vig in the line.

How to Use the No-Vig Calculator (Step-by-Step)

Using the calculator above is straightforward. Select your market type, enter the odds, and the tool instantly shows you fair odds, true probabilities, and the exact vig percentage.

2-Way Market Example (Moneyline: NBA, NFL)

Most moneyline bets, alternate spread markets, and alt points have exactly two outcomes — Team A wins or Team B wins.

1. Select 2-Way mode
2. Enter odds for both outcomes (American or Decimal)
3. Read the results: fair probability, no-vig odds, and total margin

NBA Example: Lakers vs Celtics

No-vig lines matter most in markets you bet repeatedly — like NBA, where small probability edges compound across an 82-game season. A systematic NBA betting approach combined with no-vig line tracking is one of the most repeatable sharp-betting workflows.

Say DraftKings offers:

• Lakers: -180 (decimal 1.556)
• Celtics: +155 (decimal 2.550)

The calculator reveals:

• Lakers fair probability: 62.5% (not the 64.3% implied by -180)
• Celtics fair probability: 37.5% (not the 39.2% implied by +155)
• Fair odds: Lakers 1.600 / Celtics 2.667
• Total margin: 4.5%

That extra 1.8% on the Lakers and 1.7% on the Celtics? That's the vig — split across both sides. Without a no-vig calculator, you might think the Lakers have a 64.3% chance. The true market assessment is closer to 62.5%.

This matters for value betting. If your model says Lakers at 65%, the raw odds might look fair — but the no-vig line says the market is at 62.5%, so you actually have a 2.5% edge.

3-Way Market Example (Soccer: Win/Draw/Loss)

Here's where most calculators fall short — they only handle 2-way markets. Soccer matches have three outcomes: home win, draw, away win. The vig hides across all three.

1. Select 3-Way mode
2. Enter odds for Home, Draw, and Away
3. See how the vig is distributed — it's rarely even across all three outcomes

Example: Premier League match

• Home: 2.70 (implied 37.0%)
• Draw: 3.20 (implied 31.3%)
• Away: 2.80 (implied 35.7%)
• Total implied: 104.0% → Margin: 4.0%

No-vig results:

• Home fair: 35.6% → fair odds 2.81
• Draw fair: 30.1% → fair odds 3.33
• Away fair: 34.3% → fair odds 2.91

Notice the vig isn't evenly distributed — the book shaded the home win slightly more than the other outcomes. That's common: books tend to shade toward the outcome recreational bettors favor.

4-Way Market Example

Some niche markets — like "correct score band" or "first goal timing" — have four outcomes. Our calculator handles these too.

1. Select 4-Way mode
2. Enter all four outcome odds
3. The math is identical: normalize probabilities to 100%

How to Enter Decimal Odds

If you're more comfortable with American odds, use the American format toggle. If you prefer decimal:

• Decimal odds represent total return per $1 bet (including your stake)
• Decimal 2.50 = American +150 = you get $2.50 back on a $1 bet
• Minimum valid decimal odds: 1.01

Need to convert between formats? Use our odds converter tool.

No-Vig Formula: How to Calculate Fair Odds Manually

You don't need a calculator to remove the vig — though it's faster. Here's the exact formula, step by step.

Step 1 — Convert Odds to Implied Probability

For decimal odds, the formula is simple:

$P_{implied} = \frac{1}{Decimal\ Odds}$

In plain English: divide 1 by the decimal odds. If the odds are 1.80, the implied probability is 1 ÷ 1.80 = 0.5556 = 55.56%.

For American odds, first convert to decimal:

• Positive (+150): Decimal = (150 ÷ 100) + 1 = 2.50
• Negative (-180): Decimal = (100 ÷ 180) + 1 = 1.556

Our implied probability calculator can handle this conversion automatically.

Step 2 — Remove the Vig (Normalize to 100%)

Sum all implied probabilities. If you have two outcomes at 55.56% and 39.22%, the total is 94.78%... wait, that's under 100%? No — check your math. With vig, the total is always above 100%.

Let's use our Lakers/Celtics example:

• Lakers: 1 ÷ 1.556 = 64.27%
• Celtics: 1 ÷ 2.550 = 39.22%
• Total: 103.49%

Now normalize each probability:

$P_{fair} = \frac{P_{implied}}{Total_{implied}}$

• Lakers fair: 64.27% ÷ 103.49% = 62.10%
• Celtics fair: 39.22% ÷ 103.49% = 37.90%

Now they sum to exactly 100%. The vig is gone.

Step 3 — Convert Back to Odds Format

Take the fair probability and convert back to decimal odds:

$Fair\ Odds = \frac{1}{P_{fair}}$

• Lakers: 1 ÷ 0.6210 = 1.611
• Celtics: 1 ÷ 0.3790 = 2.639

These are the no-vig odds — what the book would offer if it charged zero commission.

Complete Worked Example Table

The margin calculator shows the overall margin is 3.49% — meaning you're paying a 3.49% "tax" on every bet in this market.

Why Does Removing the Vig Matter?

If you bet casually for entertainment, the vig is just the cost of fun. But if you're serious about long-term profit, the vig is your biggest enemy — and removing it is the first step to finding real value.

Vig and Positive EV Betting

A bet has positive expected value (+EV) when your estimated probability exceeds the fair probability. Here's the critical part: you compare against the no-vig line, not the raw odds.

Example with the value bet calculator:

If you compared against the raw 64.3%, you'd think your edge is only 0.7%. But the no-vig line is 62.1% — your real edge is 2.9%. Much more significant. The value bet finder uses this exact methodology to scan for +EV opportunities.

No-Vig Lines and Closing Line Value (CLV)

Closing Line Value is the #1 predictor of long-term betting success. It measures whether the odds you bet at are better than the final no-vig closing line.

Here's how it works:

1. You bet Lakers -170 (decimal 1.588) at 3pm
2. By game time, the line closes at Lakers -190 (decimal 1.526)
3. The no-vig closing probability is 63.8%
4. Your bet at -170 implied 62.9% fair probability
5. You got a better price → positive CLV

Sharp bettors track CLV obsessively because beating the closing line consistently — even by small amounts — is mathematical proof of an edge. The CLV calculator makes this tracking automatic.

Think of it like buying a stock before it goes up: if you consistently buy at prices the market later confirms were undervalued, you have genuine skill, not luck.

The edge analyzer combines these concepts — comparing your entries against closing no-vig lines to measure your true edge over time.

No-Vig Calculator vs Vig Calculator — What's the Difference?

These terms sound similar but serve different purposes:

When to Use Each Tool

Use the No-Vig Calculator when:

• You want fair odds for a specific outcome to compare against your model
• You're tracking CLV and need the no-vig closing line
• You're building a Kelly staking model that requires true probabilities

Use the Margin Calculator when:

• You want to compare which sportsbook has the lowest overall vig
• You're evaluating a book's competitiveness across market types
• You want a quick vig check before diving deeper

Use both together:

• First check the margin to see if the vig is reasonable
• Then run the no-vig calculator to get fair odds per outcome
• Compare those fair odds against your model → if you see edge, consider the hedge calculator or arbitrage calculator for risk management

For multi-leg bets, the vig compounds — a 5-leg parlay with 4.5% vig per leg quietly eats ~20% of your expected return. Always check the vig before building parlays.

Systematic bettors who use staking systems like Fibonacci or Labouchere should factor no-vig probabilities into their models — staking plans amplify edge, but they also amplify negative EV if you're betting into high-vig markets.

No-vig calculations are especially valuable for MLB underdog systems where line shopping and true probability analysis can add 2%+ to your long-term ROI. Combine no-vig analysis with NFL situational betting angles for maximum edge — NFL spreads are among the sharpest markets, so even small vig differences compound over a 17-game season.

FAQ