How to Read Betting Odds NFL: A Quick Guide

Updated: December 10, 2025

NFL betting odds look cryptic at first, then suddenly they click. Once you can read the numbers quickly, everything feels cleaner—whether you're browsing an online sportsbook or analyzing your next sports betting pick. This odds explanation will show you how to read betting odds NFL style, helping you assess game outcomes with clarity and precision.

Let’s get started with how odds are written.

How NFL Odds Are Shown

Sportsbooks and online sportsbooks display odds in three formats. You will mostly see American odds for NFL in the United States, though it helps to know all three:

• American odds: -110, +150, +700
• Decimal odds: 1.91, 2.50, 8.00
• Fractional odds: 10/11, 3/2, 7/1

American odds tell you how much you need to risk or how much you would win. This is a crucial piece of odds explanation that every fan of sports betting should master.

• Negative number: how much you must risk to win 100 dollars. Example: -150 means risk 150 to win 100.
• Positive number: how much profit you would win on a 100 dollar bet. Example: +180 means a 100 bet returns 180 profit.

Decimal odds show the total return per dollar staked, including your stake. Fractional odds show profit relative to stake, similar to horse racing.

The Moneyline: Who Wins the Game

A moneyline is the price on each team to win outright.

• Favorite: negative moneyline, like -160
• Underdog: positive moneyline, like +140

Example:

• Chiefs -160
• Dolphins +140
• A 160 wager on the Chiefs pays 100 profit if they win, and returns 260 total.
• A 100 wager on the Dolphins pays 140 profit if they win, and returns 240 total.

You can also see teams like the Colts featured in these lines—watch for the Colts when they are either favorites or underdogs. No spreads, no margins, just who wins, based solely on game outcomes.

Point Spreads: Margin of Victory

Spread bets set a margin the favorite must cover. A typical NFL spread might be:

• Cowboys -3.5 (-110)
• Giants +3.5 (-110)

In sports betting, the -3.5 means the Cowboys must win by 4 or more for a Cowboys spread bet to cash. If the spread is a whole number like -3, a 3-point win is a push and your stake is returned. In many cases, the Colts also play with similar spreads, so knowing how to read betting odds NFL style, including for teams like the Colts, is essential.

Juice or vig is the price on the spread. Most spreads sit near -110. Small changes matter:

• -110 break-even probability is 52.38 percent
• -105 break-even is 51.22 percent
• -115 break-even is 53.49 percent

NFL spreads gravitate around key numbers tied to common scoring outcomes: 3, 7, 6, 10, 14. That half point, called the hook, can be worth real money over a season. Laying -3.5 versus -3, or taking +3.5 versus +3, changes your long-term edge.

Totals: Points Scored in the Game

Totals refer to the combined points by both teams, often referred to as the over/under in sports betting circles. You choose over or under. Odds again show the price.

Example:

• Over 47.5 (-108)
• Under 47.5 (-112)

If the game lands 48 or higher, over wins. If it lands 47 or lower, under wins; this over/under concept is one way to predict game outcomes. Overtime counts for most NFL totals.

Books also post team totals, first half totals, and sometimes quarter totals, along with alternate totals at different prices.

Understanding American Odds With Implied Probability

Prices carry probability inside them. Converting odds to implied probability is a key part of the odds explanation that allows you to compare the sportsbook’s view to your projection of game outcomes.

Use these formulas:

• For negative odds: implied prob = (-odds) / ((-odds) + 100)
• For positive odds: implied prob = 100 / (odds + 100)

Examples:

• -110 implies 52.38 percent
• -150 implies 60.00 percent
• +120 implies 45.45 percent
• +250 implies 28.57 percent

A quick mental rule: the more negative the favorite, the higher the implied probability. The more positive the underdog, the lower the implied probability.

Quick Reference Table

Here is a handy table for common prices.

American	Decimal	Implied Probability
-120	1.83	54.55%
-115	1.87	53.49%
-110	1.91	52.38%
-105	1.95	51.22%
+100	2.00	50.00%
+110	2.10	47.62%
+125	2.25	44.44%
+150	2.50	40.00%
+200	3.00	33.33%
+300	4.00	25.00%

Decimal values rounded to two decimals.

Example Walkthrough: Reading One NFL Line

Say you see:

• 49ers -2.5 (-114)
• Eagles +2.5 (-106)
• Total 46.5 Over (-108) Under (-112)
• 49ers moneyline -140
• Eagles moneyline +120

What this tells you:

• The spread favors the 49ers by a field goal minus the hook. Priced at -114, you need about 53.27 percent to break even on that spread.
• Eagles +2.5 at -106 needs about 51.46 percent to break even.
• The moneyline prices imply something like 58.33 percent for the 49ers and 45.45 percent for the Eagles. That does not sum to 100 percent because the book holds a margin.
• The total, which includes the over/under element, suggests a mid 40s scoring game. Over -108 needs 51.92 percent, under -112 needs 52.83 percent.

Now compare those implied probabilities to your numbers. If your model makes San Francisco -2.8 and -144, you might prefer the moneyline or wait for -2.5 to move to a softer price. If you make the total 47.3, over at -108 could be reasonable. Also, consider keeping an eye on the Colts if they’re playing—they can introduce unique betting strategies due to their historical performance.

Vigorish: How the Book Gets Paid

The edge built into prices is called vig or juice. With a two-sided market, the book sets prices so that if bettors split action evenly, the book still profits.

A classic example is a 50-50 event priced at -110 both sides. Each side needs 52.38 percent to break even, which is higher than the true 50 percent. That extra 2.38 percent is the edge against you on that single bet.

You can estimate hold on a two-way market with this shortcut:

• Convert both prices to implied probabilities, add them, then subtract 100 percent.

Example:

• -110 and -110. Each side implies 52.38 percent. Sum is 104.76 percent. Hold is 4.76 percent.

Lower holds are better for you. In practice, holds vary by market and book.

Line Movement and Closing Line Value

Odds move as information and money arrive. Injuries, weather, and pro bettors can nudge or shove a line. The number you get matters.

Closing line value, often called CLV, is the difference between your price and the closing price. Beating the close consistently is a strong sign of solid timing or sharper reads. It does not guarantee a win on any one bet, but over time it shows you are finding edges for game outcomes.

Tips:

• Track lines at multiple books.
• Pay attention to key numbers. Moving off 3 or 7 changes expected value more than shifting from 4.5 to 5.
• Late injury reports and weather updates can shift totals and spreads quickly.

Parlays: Multiplying Prices

A parlay ties multiple legs together. All legs must win for the ticket to cash. The payout is based on multiplying decimal odds.

Example:

• Leg 1: -110 is 1.91 in decimal
• Leg 2: +120 is 2.20 in decimal
• Leg 3: -105 is 1.95 in decimal
• Combined decimal is 1.91 x 2.20 x 1.95 = 8.19
• A 100 stake returns 819 total, profit 719

Parlays can be fun and can produce big payouts, but the true hold is higher than singles. Even a small edge can vanish when you multiply multiple prices that contain vig. Correlated parlays, where outcomes are linked—for instance, a quarterback’s performance and the Colts’ overall result—are often restricted or priced differently. This is an important part of developing effective betting strategies.

Same Game Parlays and Correlation

In NFL markets, some outcomes are related. A quarterback over passing yards and his top receiver over receiving yards often rise together. Books know this and use in-house models that change prices when you combine certain legs.

When building same game parlays:

• Look for fair pricing and meaningful boosts.
• Keep the number of legs tight. Two or three legs are easier to analyze than six or more.
• Beware of obvious correlations that are overpriced. If it seems too easy, the price is probably padded.

Teasers: Moving the Spread in Your Favor

A teaser lets you move NFL spreads or totals by a fixed number of points—often pivotal in the over/under—at a new price. A common two-team, 6-point teaser might be priced near -120.

Standard advice for NFL teasers focuses on crossing 3 and 7:

• Teasing a favorite from -8.5 to -2.5 crosses both 7 and 3.
• Teasing an underdog from +2.5 to +8.5 does the same.

Not all weeks are created equal. Totals affect teaser value too. Lower totals generally favor teasers because points are scarcer, so each point is worth more on average. Price matters. A -140 two-team teaser wipes out much of the edge you gained by moving through key numbers.

Props: Player Markets and Alt Lines

Player props cover passing yards, rushing attempts, receptions, touchdowns, longest completion, and more. Team props include first to 10 points, first scoring play, sacks, or defensive and special teams touchdowns.

What to watch:

• Lines move fast on props after injury news and role changes.
• Usage and pace matter more than narratives. Snap counts and route rates drive volume.
• Books often hang alternate lines at different prices. Alt spreads or alt totals let you choose a risk level that matches your view—an essential tool in any sports betting plan.

Futures: Season-Long Bets

Futures cover Super Bowl winner, conference and division titles, win totals, awards like MVP, and player season stat lines.

Key ideas:

• Hold on futures is often high. Shop around for the best price.
• Timing matters. Buying before a soft schedule run can capture closing value.
• Hedging is a practical tool. If your 20 to 1 ticket reaches the title game, you can lock in profit with a moneyline bet on the other side.
• Don’t forget that futures on teams like the Colts may offer unique opportunities given their historical trends.

Bankroll Strategy That Keeps You in the Game

Odds literacy pairs well with money management. Edges are small in NFL sides and totals, and variance can be wild week to week. Sound betting strategies should always be paired with a solid bankroll plan.

• Pick a unit size that feels boring. Many steady bettors use .5 to 2 percent of bankroll per wager.
• Keep your bet sizing consistent. Spiking size after a loss streak is how bankrolls vanish.
• Track closing prices and results. Your records are your best signal.

A quick note on Kelly. Full Kelly maximizes growth with perfect inputs, which most of us never have. A quarter Kelly or eighth Kelly is a calmer version that reduces risk and drawdowns.

How to Read Odds at a Glance

A simple five-step process helps you make fast, clean decisions:

1. Identify the market
   1. Moneyline, spread, total, prop, parlay, teaser, or futures
2. Read the number and the price
   
   2. Spread or total with the hook
   
   2. Moneyline sign and magnitude
   
   2. Juice on each side
3. Convert to implied probability
   
   3. Negative odds: a over a plus 100
   
   3. Positive odds: 100 over a plus 100
   
   3. Round to a tenth of a percent if you need speed
4. Compare to your projection
   
   4. Is your edge large enough to overcome the vig?
   
   4. Does an alternate line fit your view better?
   
   4. Ask yourself: how do I read betting odds NFL style when considering teams like the Colts or how the overall game outcomes might affect my bet?
5. Calculate payout and risk
   
   5. Confirm your unit size
   
   5. Check other books for a better number

Common Mistakes That Cost Money

A short list to keep you sharp:

• Misreading the sign. +120 is not -120. Slow down, then click.
• Ignoring juice. A half point is not worth paying any price.
• Chasing losses. Raising stakes to win back money breaks solid math.
• Buying points across dead numbers. Paying to move from -6.5 to -6 often has little value compared to the price.
• Overloading parlays and teasers. More legs often means worse prices and a higher house edge.

Live Betting Basics

Live markets adjust after each play. Prices can swing on turnovers, red zone trips, and long third downs. In live sports betting, knowing how to read betting odds NFL style and keeping up with game outcomes, including sudden shifts from teams like the Colts, is vital.

Pointers:

• Pre-game projections still matter. Think in terms of how the state of the game deviates from your baseline.
• Possession and timeout count affect endgame lines more than many people expect.
• Avoid delay lag traps. If your stream is behind by 20 to 40 seconds, you will trail the market.

Shop for the Best Number

A half point or five cents of juice can be the difference between long-term profit and break-even. That is not an exaggeration in NFL sides and totals.

• Open accounts at multiple legal books to compare lines.
• Set alerts for key numbers.
• Build a habit of checking prices before placing a bet, even if it takes an extra minute.

Vocab Cheat Sheet

• Moneyline: price on a team to win the game.
• Spread: handicap applied to the final score.
• Hook: the half point on a spread or total.
• Juice or vig: the tax baked into a price.
• Push: tie at the spread or total number, stake returned.
• CLV: closing line value, your price compared to the final market price.
• Alt lines: alternate spreads or totals with different prices.
• Futures: season-long outcomes and awards.
• Prop: bet on a specific player or team stat, or an event inside the game.
• Over/under: another term for totals in sports betting.

A Responsible Mindset

NFL betting should fit inside your life, not the other way around. A few habits keep it healthy.

• Set a weekly or monthly cap.
• Take breaks during tough runs.
• Use tools that help you limit deposits or time spent.
• If it stops being fun, step back and talk to someone you trust.
• Remember that teams like the Colts can sometimes spur emotional betting—always stick to your betting strategies.

Quick NFL Odds Checklist

• Read the market type and the price format.
• Convert odds to implied probability.
• Respect key numbers in spreads and teasers.
• Shop for the best line and juice.
• Size bets consistently.
• Track results and closing prices.
• Avoid chasing and overloading parlays.
• Use live betting only when you have a clear edge or a strong plan.
• Keep it fun and within your limits.

With these fundamentals, NFL odds stop looking like code and start reading like a language. Whether you’re analyzing the moneyline for the Colts, checking the over/under, or applying solid betting strategies in sports betting, once you can translate quickly, you can focus on the real task: finding a number that is just a little off, and acting with discipline when you see it.