How to Read NFL Betting Odds: A Step-by-Step Guide for Beginners

You've seen the numbers. Chiefs -6.5 (-110). Eagles +240. Over 47.5. And if you're being honest, they might as well be written in a different language. You're not alone in that feeling, and the good news is this: NFL betting odds aren't actually complicated. They just look that way until someone walks you through the system once.

This guide does exactly that. By the time you finish reading, you'll know how to read every common odds format, understand what those numbers mean for your actual wallet, spot when a line has value, and know where to find the best price before you lock in a bet.

We're starting from zero. No jargon left unexplained. No assumptions that you already know what "juice" or "covering" means. Whether you're betting your first NFL game this weekend or you've been squinting at these numbers for a few seasons and finally want to understand them, this is the guide you've been looking for.

Let's get into it, step by step.

Step 1: Recognize the Three Numbers on Every NFL Game Listing

Before you can read NFL odds, you need to know what you're looking at. Every NFL game listed on a sportsbook shows three distinct bet types, and they always appear together. Miss one, and you're only getting part of the picture.

Here's what a typical game card looks like:

Kansas City Chiefs -6.5 (-110)

Philadelphia Eagles +6.5 (-110)

Total: Over/Under 47.5 (-110)

Eagles Moneyline: +210 | Chiefs Moneyline: -255

Those three bet types are the point spread, the moneyline, and the total. You'll encounter all three every single week of the NFL season, so let's define each one clearly.

The Point Spread: This is the margin of victory a team must win or lose by. In the example above, the Chiefs are -6.5. That means Kansas City must win by 7 or more points for a bet on them to pay out. The Eagles are +6.5, meaning Philadelphia can lose by up to 6 points and still "cover." The spread levels the playing field between mismatched teams.

The Moneyline: This is the simplest bet in football. You're picking who wins the game outright, with no margin required. The Chiefs at -255 are heavy favorites. The Eagles at +210 are underdogs. No spread involved, just win or lose.

The Total (Over/Under): You're not picking a winner here. You're betting on the combined final score of both teams. If the total is 47.5, you bet Over if you think both teams combine for 48 or more points, or Under if you think they combine for 47 or fewer.

That's the full picture. Three bet types, always displayed together, always using the same American odds format. Once you can identify all three at a glance, you're ready to actually decode what the numbers mean.

Your success check: Pull up any sportsbook right now, find an NFL game, and point to the spread, the moneyline, and the total. If you can do that, you've nailed Step 1.

Step 2: Decode American Odds — The + and – System

Every number you see on a US sportsbook uses American odds format. It's the +/– system, and once you understand the logic behind it, reading any line becomes straightforward.

Here's the core rule: negative numbers indicate the favorite, positive numbers indicate the underdog.

Negative odds (e.g., -110, -150, -255): These tell you how much you need to bet to win $100. A line of -110 means you risk $110 to win $100. A line of -255 means you risk $255 to win $100. The bigger the negative number, the more expensive the bet, and the more the sportsbook thinks that team is likely to win.

Positive odds (e.g., +130, +210, +240): These tell you how much you win on a $100 bet. A line of +210 means a $100 bet returns $210 in profit. A line of +240 means a $100 bet returns $240 in profit. You don't have to bet exactly $100, but that's the baseline the format uses.

Let's make it concrete with two examples.

You bet $110 on the Chiefs -6.5 at -110. If they cover, you win $100, and your total return is $210 (your $110 stake back plus $100 profit). If they don't cover, you lose the $110.

You bet $100 on the Eagles moneyline at +240. If Philadelphia wins outright, you win $240, and your total return is $340. If the Eagles lose, you lose the $100.

Now, about that -110 you see everywhere on spreads and totals: that's the standard price. It's not random. It exists because sportsbooks build a small margin into every bet, which is called the "juice" or the "vig." At -110 on both sides of a spread, the book takes a small cut regardless of which team covers. Think of it like the house edge at a casino, except much smaller and more transparent.

A common mistake beginners make is assuming +150 means you're getting 1.5x your money back. You're not. You're getting 1.5x your stake as profit, plus your original stake returned. On a $100 bet at +150, you'd collect $250 total: your $100 back plus $150 profit. Always add your stake to the profit number to get your full return.

Here's the shortcut: you don't need to do this math in your head every time. The Big Mike app at https://go.bigmike.ai/app translates odds into plain-English payout breakdowns automatically. Text Big Mike any question about a line, and you get the play, the number, and exactly what it pays, spelled out clearly.

Your success check: Look at a line showing -135 and +115. Can you calculate the approximate payout on a $50 bet for each side? If yes, you've got Step 2 locked in.

Step 3: Read the Point Spread Like a Sharp

The spread is the most popular NFL bet type, and it's also the one that trips up the most beginners. Let's fix that.

The key phrase you'll hear constantly is "covering the spread." Covering doesn't mean winning the game. It means winning by more than the spread (if you're on the favorite) or losing by less than the spread (if you're on the underdog).

Walk through both sides with a real example. Say the Bills are -7 against the Jets.

Betting the Bills -7: Buffalo must win by 8 or more points. If they win 24-17, that's exactly 7 points — and that's a push (more on that in a second). If they win 28-17, that's 11 points — Bills cover. If they win 20-17, they won the game but didn't cover the spread. You lose the bet.

Betting the Jets +7: New York can lose by up to 6 points and you still win the bet. If the Jets lose 24-17, that's a 7-point loss — push. If they lose 20-17, that's only 3 points — Jets cover. If they somehow win outright, you definitely cover.

The push: When the final margin of victory equals the spread exactly, neither side wins or loses. Your bet is refunded in full. This is why sportsbooks often use half-points like -6.5 or -7.5 — it eliminates the possibility of a push entirely.

Speaking of half-points: the difference between -6.5 and -7 is genuinely significant in NFL betting. Seven is the most important number in football because a touchdown plus an extra point equals exactly 7 points. Games end on a 7-point margin more often than any other number. If you're betting a team at -7, there's a meaningful chance the game lands right on that number. At -6.5, you need them to win by 7, and a 7-point win covers. At -7, a 7-point win is a push. That half-point matters more than it looks.

Now let's talk about line movement. The spread you see on Monday isn't always the spread available on Sunday. Lines shift based on betting volume and new information: injuries, weather forecasts, sharp professional bettors moving money. A line that opened at Chiefs -3 and is now sitting at Chiefs -5 tells you something. Significant money came in on Kansas City, likely from informed bettors. That's a signal worth paying attention to.

The common pitfall here is placing a spread bet without checking where the line opened. If you're getting -5 on a team that opened at -3, you're getting a worse number than early bettors. Sometimes that's unavoidable. But knowing the line moved helps you understand the market's current opinion on the game.

Your success check: The Packers are -4.5. Green Bay wins 21-17. Who covers? (Answer: the final margin is 4 points, which is less than 4.5, so the underdog covers.)

Step 4: Understand Moneyline and Totals Bets

Once you've got the spread down, moneylines and totals are straightforward by comparison. But each has its own logic worth understanding before you bet.

Moneyline bets are pure: pick the winner, no margin required. This sounds simpler than the spread, and it often is, but the odds reflect the probability of winning. A team at -200 is priced as roughly a 2-in-3 chance to win. You're paying a premium for that safety. A team at +180 is priced as less likely to win, but if they do, you're getting paid significantly more than you risked.

Moneylines make the most sense in a few specific situations. When you love a big underdog and want full credit for an outright win, the moneyline is cleaner than the spread. When a matchup is lopsided and you want to back the favorite without worrying about margin, a moneyline might cost less juice than you'd expect. And when injuries or weather shift the game dynamics significantly, moneyline value can appear on sides the spread hasn't fully adjusted for yet.

The bigger the negative moneyline number, the more you're paying for a "safe" bet. A team at -400 needs to win roughly 80% of the time just for you to break even over the long run. That's not always bad, but it's worth understanding what you're actually buying.

Totals (Over/Under) operate differently because you're not picking a team at all. You're betting on the combined final score. The standard juice is -110 on both sides, same as spreads.

What moves a total? Weather is the biggest factor: cold, wind, and rain suppress scoring. Pace of play matters: some teams play fast and run lots of plays, others grind clock. Injuries to quarterbacks, top receivers, or offensive linemen can dramatically affect a team's scoring potential. A game with two explosive offenses and a dome setting might carry a total of 54. A cold-weather divisional game with two run-heavy teams might sit at 40.

The key distinction between moneylines and totals is this: moneyline betting rewards you for identifying which team is better or more likely to win. Totals reward you for understanding game context, pace, and conditions, not team quality.

Your success check: A team is listed at +165 on the moneyline. Is this team the favorite or the underdog? (Answer: underdog — positive odds always indicate the underdog.)

Step 5: Calculate What a Bet Actually Pays Before You Place It

This is the step most beginners skip, and it costs them. Placing a bet without knowing your exact payout is like buying something without checking the price. Let's fix that with simple math you can do in your head or on your phone.

For negative odds: Divide your bet amount by the odds number (drop the minus sign), then multiply by 100. That gives you your profit. Add your original stake for total return.

Example: $55 bet at -110. Divide 55 by 110 = 0.5. Multiply by 100 = $50 profit. Total return: $105.

For positive odds: Divide the odds number by 100, then multiply by your bet amount. That's your profit. Add your stake for total return.

Example: $50 bet at +175. Divide 175 by 100 = 1.75. Multiply by 50 = $87.50 profit. Total return: $137.50.

Let's run three concrete examples so this sticks.

1. A $110 spread bet at -110. Profit = (110/110) x 100 = $100. Total return = $210.

2. A $100 moneyline bet at +175. Profit = (175/100) x 100 = $175. Total return = $275.

3. A $50 total bet at -115. Profit = (50/115) x 100 = $43.48. Total return = $93.48.

Now here's where implied probability comes in, and this is where reading odds gets genuinely useful. Every set of odds implies a probability of winning. You can convert any American odds to implied probability to understand what the sportsbook thinks the chances are.

For negative odds: divide the odds number by (odds number + 100). At -150: 150 / (150 + 100) = 150/250 = 60% implied probability.

For positive odds: divide 100 by (odds number + 100). At +200: 100 / (200 + 100) = 100/300 = 33.3% implied probability.

Why does this matter? If you think a team has a 65% chance of winning but they're priced at -150 (implying 60%), you've found value. Your edge is the gap between what you believe and what the market is offering.

One more thing to understand: the vig means both sides of a spread don't add up to 100% implied probability. At -110/-110, each side implies about 52.4% probability. Add them together and you get 104.8%. That extra 4.8% is the sportsbook's margin, built into every bet.

The Big Mike app at https://go.bigmike.ai/app handles all of this automatically. It compares odds across 12+ sportsbooks and shows you the best available price, so even a small difference in juice compounds meaningfully over an entire season of betting.

Your success check: A team is priced at -200. What is the implied probability? (Answer: 200/300 = 66.7%.)

Step 6: Compare Odds Across Sportsbooks to Find the Best Price

Here's the most underrated skill in sports betting, and almost no beginner does it: line shopping. It sounds simple because it is. You're just checking multiple sportsbooks to find the best price on the bet you want to make.

The same game can have meaningfully different odds at different books. One sportsbook might have the Chiefs at -6, while another has them at -6.5. One might price the spread at -108, another at -115. Those differences look small. They're not.

Think about it this way. If you consistently bet -108 instead of -115 on spread bets, you're paying less juice on every single wager. Over 100 bets in a season, that difference adds up to real money, even if you're betting the same sides at the same times. Getting a better number is one of the few edges a bettor can actually control, unlike injuries, weather, or coaching decisions.

The problem is that manually checking six or eight sportsbooks before every bet is tedious. By the time you've checked them all, the line might have moved. That's where tools built for this purpose become genuinely useful.

The Big Mike app (https://go.bigmike.ai/app) was built specifically for this. It compares odds across 12+ sportsbooks in real time and sends you the play, the number, and the best available price, all via text. You don't have to tab between apps or manually track line movement. Big Mike does that work and texts you the result.

Every morning, Big Mike sends a daily slate with the day's lines and angles before the market moves. That early look matters because the sharpest prices are often available before public betting volume shifts the line. By the time most bettors check the odds, the best number is already gone.

The app also includes a built-in bet tracker so you can see your actual results over time. Most bettors run on gut feel and selective memory. The tracker gives you real data: which bet types are working, which sports, which situations. That feedback loop is how recreational bettors start thinking more like professionals.

There's a permanent free tier, so you can start using it without entering a credit card. Download it on the App Store here: Big Mike Sports Betting Picks.

Text Big Mike any question about a line and you get back the play, the number, the best price across all the books, and the data behind why the line is where it is. It's the kind of information that used to require hours of research or access to expensive professional tools.

Your success check: You want to bet the Eagles +3. Book A has -110. Book B has -108. Over 50 bets at $100 each, which book saves you more money? (Answer: Book B, consistently. The difference in juice compounds significantly over time.)

Your NFL Odds Reading Checklist

You now know how to read every number on an NFL odds board. Before you place your next bet, run through this quick checklist. It takes about 60 seconds and it will save you from the most common beginner mistakes.

Identify the bet type. Are you looking at a spread, a moneyline, or a total? Make sure you know which one you're actually betting before you confirm anything.

Read the American odds. Is the number positive or negative? Negative means favorite, positive means underdog. Know what you're paying or what you're getting.

Calculate your approximate payout. Don't place a bet without knowing what you stand to win. Use the formulas from Step 5 or let the Big Mike app do it for you.

Check implied probability. Does the sportsbook's implied probability match your own assessment of the game? If your number is higher than theirs, you may have found value.

Compare prices across books. Never bet the first line you see. Check at least a couple of sportsbooks, or use Big Mike to pull the best price automatically across 12+ books.

Track your bet. Log it. You can't improve what you don't measure.

Reading odds is a skill that clicks fast. The first few times feel slow. By week three of the NFL season, it becomes automatic. The numbers stop looking like code and start looking like information.

Big Mike covers NFL, MLB, college football, NBA, and WNBA, so the app works year-round, not just during football season. Start with the free tier at https://go.bigmike.ai/app or try the 7-day trial to see the full slate of picks and analysis.

NFL betting odds aren't complicated. They're just unfamiliar. Now they're not unfamiliar anymore.

You started this guide not knowing what -6.5 (-110) meant. Now you know it's a point spread where the favorite must win by 7 or more, priced at standard juice, and you know how to calculate exactly what it pays, how to find it at the best price, and how to decide if it's worth betting in the first place. That's the whole system.

The next step is putting it into practice. Download the Big Mike app, pull up today's NFL slate, and see the odds through fresh eyes. Text Big Mike a question about any line and get back the play, the number, the best available price, and the reasoning behind it, in plain English.

If you're betting in a legal state like Ohio, Pennsylvania, New Jersey, Michigan, or Tennessee, Big Mike has state-specific content and tools built for your market. Learn more about our services and find the resources relevant to where you're betting.