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Sports Betting Spread Calculator: Calculate Fair Odds, Alternate Spreads & More

emily saunders
Fact checked by: Mike McKean
Last Updated on 12.07.2024

Nowadays, a sports betting spread calculator provides an effective and useful means of understanding fair odds, alternate spreads and implied odds, no matter if you are new or experienced with betting. This tool makes your experience more informed and strategic.

This page serves as your comprehensive guide to mastering the art of spread betting in sports. From detailed breakdowns of how spreads are calculated to expert tips for making informed bets, we cover every angle. Expect to find easy-to-follow instructions, effective strategies for novice and seasoned bettors alike, and insights designed to elevate your betting game to the next level.

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What Exactly is a Betting Spread Calculator?

Sports betting calculators make the process of placing bets easier, especially point spread bets commonly made on NFL, NBA and other leagues. A betting spread calculator serves this function perfectly. Users simply enter a points spread they’re betting on along with an alternative spread and use this tool to calculate both their likelihood of success as well as the fair odds.

How This Calculator Can Help

This calculator streamlines the once time-consuming process of calculating fair odds and alternate spreads for sports bets by significantly reducing the manual effort and the potential for human error, ensuring bettors can make more informed decisions swiftly.

Additionally, spread calculator betting aids in identifying value bets by comparing the calculated fair odds to the odds actually offered by sportsbooks, enabling bettors to spot discrepancies where the potential return on a bet exceeds the risk or vice versa. This capability is crucial for those looking to employ a strategic approach to betting, optimising their chances of profitability over time without the extensive number crunching traditionally associated with spread betting analysis.

A Spread Bet in Sports Betting: Things to Consider

In spread betting, you’re placing bets placed based on the margin of victory for a game rather than just if a team wins or loses. A spread bet represents the expected difference in score between both teams involved.

Quick Example of a Spread Bet in NFL

The NFL will serve as our example for spread betting. In particular, we’ll use the Kansas City Chiefs and San Francisco 49ers at the 2024 Super Bowl as our two-way spread example. Bookmaker Bet365 had Kansas City Chiefs as favourites at -3.5 at 2.63 while the 49ers had 1.44 odds at +3.5. That means your bet would succeed only if Kansas City won by four or more points. Or, if you bet on the 49ers, you would win if they didn’t lose by more than three points or they won the game itself.

Sports Spread Bet: Benefits

Sports spread betting has long been popular as it levels the playing field between mismatched teams and makes every match-up entertaining regardless of its perceived outcome. Spread betting also provides bettors with opportunities for profit in what would otherwise be one-sided contests. By placing their bets on margin of victory rather than the final outcome, there is the possibility for success regardless of who wins in the end.

Utilising a spread calculator is only recommended if you possess in-depth knowledge of both teams involved, injuries sustained by them and how factors such as weather may influence outcomes.

Sports Suitable for Using a Spread Betting Calculator

Here’s a list of sports where using a bet spread calculator can be particularly beneficial due to the frequent and significant variations in game dynamics and outcomes:

American Football

In particular, the NFL and college football games, where point spreads are a critical part of betting. A lot of this down to the high scoring nature of the fixtures and the potential for significant discrepancies between points. There are a lot of uneven matchups in the NFL, so the spread helps smooth that out. In terms of matches to target, there are often uneven matchups in college football, especially on the national level.


Both NBA and college basketball spreads can significantly impact betting strategies. This is down to the huge fluctuations in points as well as the high scoring and rapid nature of the game. Understanding which players pose the biggest threats in attacking situations as well as anticipating the varied outcomes effectively is crucial. Uneven matchups in playoff competitions are a particularly useful avenue to try.

Football (Soccer)

Spread betting in football is especially useful for handicaps and goal line betting. Unlike the previous two sports we’ve discussed, the scores tend to be comparatively low in football. Essentially, this keeps the spread tight and means you need to be even more precise in terms of selections. Still, there’s value to be found in uneven matchups in leagues like the Premier League, where the so-called big six often fall victim to unexpected losses, especially away from home.

In sum, each of these sports offers unique opportunities for spread betting, thanks in part to their scoring systems and gameplay dynamics.

Our Spread Betting Calculator

Using our spread betting calculator is a real game changer. Essentially, it makes the complex simple! Just input the points margin for your fair spread along with your alternate spread margin. Then, hit calculate, and you will see the probability of winning and the Fair Lines price.

Spread calculator

3 Reasons to Use a Sports Betting Spread Calculator

Here are three key benefits that underscore the importance of incorporating this tool into your sports betting endeavours.

 1. Save Time on Complex Odds Calculation

Our calculator does the heavy lifting by converting complicated odds and spreads into straightforward, easy-to-understand figures. This means less time crunching numbers and more time focusing on strategy and bets that offer the best value.

2. Assess Value

By providing you with the fair lines price on both your fair and alternative point spread margins, our calculator gives you a clear picture of whether a bet is worth taking based on potential profitability and probability of success. This can help you make more informed decisions and assess value based on data rather than gut instincts.

3. Better Risk Management

Effective risk management is foundational to successful spread betting. By precisely calculating potential outcomes through our calculator, bettors can tailor their wagers to fit their risk tolerance.

Best Bookmakers for Using a Spread Margin Calculator

Choosing the best betting sites is critical for anyone looking to leverage a spread betting margin calculator. The bookmakers recommended below have been handpicked based on their reliability, the range of sports offered, and the competitiveness of their spreads.

Useful Tips for Using a Spread Betting Calculator

Leveraging a sports spread betting calculator is not just about simplifying calculations. It’s a strategy that can significantly enhance your betting approach. The following tips are designed to further optimise your use of this essential tool.

Underdogs and Favourites: Know Their Roles

An essential aspect of point spread betting in sports is understanding how underdogs and favourites work. The point spread evens out uneven teams by requiring the favourite to win by a certain margin for any bet to pay out. Betting on underdogs may offer significant value, especially in cases when the spread does not accurately reflect competitive balance between them.

Shop Around for Lines

Finding a good line in spread betting is of utmost importance, as even small differences can have a major effect on potential profits. Shopping around for bets across multiple bookmakers – commonly referred to as “line shopping” – is one effective strategy for minimising risk. A moneyline calculator could also prove handy here by helping to compare odds between types of bets.

Assess the Key Numbers

Understanding and assessing the key numbers in spread betting is essential for making informed decisions. Key numbers, particularly in sports like football, represent the most common margins of victory. These numbers can guide bettors on where to place their spreads, providing an edge over less informed participants. For example, in football, the most common margins of victory are 3 and 7.

Other Calculators to Try

Don’t just look at our spread betting calculator. We’ve got loads more! There’s a whole bunch of these that can change your betting approach. Plus, they’re tailored to different bets and scenarios, so you can approach complex bets with ease.

A Quick Round Up of our Bet Spread Calculator

The versatility of a betting spread calculator cannot be overstated. By giving you clear information on your probability of winning with a given point spread, as well as your profit potential, this calculator will help you make the right kinds of bets and avoid mistakes with your calculations. Suitable for numerous sports such as American football, soccer, and basketball, this tool saves you time and helps you find value in your spread betting strategy.

Use These Bonuses with Our Spread Bet Calculator

A lot of people realise that using betting bonuses within your strategy can change your betting efficiency. Here is a strong selection of bonuses that, used with our sports betting spread calculator, will enhance your spread betting experience further.

The best online betting bonuses in 2024

Bet Spread Calculator FAQs

🖐️ What is a spread betting calculator in sports betting?

Effectively, you can use a spread betting calculator to work out potential outcomes of bets in points spreads. The points spread helps level the playing field, giving each team a number chosen by the bookmaker. It gives each team a numerical value based on the difference in strength. Bettors use the spread betting calculator to determine their probability of winning and fair lines by inputting the fair spread and the alternate spread.

🏉 Which sports are best for using a spread betting calculator?

The spread betting calculator proves invaluable across a variety of sports, particularly those where points spreads are commonly used. Notably, American football and basketball are prime candidates due to the frequent use of point spreads in these sports. Additionally, it can be quite useful in football (soccer), especially regarding goal lines.

🧮 How can a spread betting calculator enhance your approach?

You will find that a bet spread calculator can often make a difference. That’s because you’re getting precise estimations out of your points spread outcomes. All you do is put in your fair and alternate spreads for any sport you choose, and you get an accurate calculation of the probability of your bet actually going through.

💰 Can you use bonuses with a spread betting calculator?

Absolutely, bonuses and promotions offered by sportsbooks can be used in conjunction with a points spread betting calculator. For example, if a bettor has a free bet from a welcome bonus, they might still consider a spread with a slightly lower probability of winning but a greater potential payout since they aren’t betting with their own money anyway.

🔢 What are key numbers in points spread sports betting?

Key numbers in points spread sports betting refer to the most common margins of victory in games, particularly in football. These numbers are critically important because they represent the final score differential seen most frequently. Take the NFL. 3, 7, 10, and 14 are key. That’s because they relate to some common scoring options in the game. For instance, field goals are 3, touchdowns with a successful extra point are 7.