Half Point Calculator

Half Point Options

Spread OptionSpreadPriceValue
Spread (-0.5)0
Good
Spread3-110
Base
Spread (+0.5)0
Fair

What Is a Half Point Calculator?

This sports betting calculator lets you compare the value of buying or selling half a point in major sports leagues. The half point calculator is used by beginner and advanced sports bettors to find value.

Let's say a sportsbook sets the "total runs" market at -110 odds for over 8 runs and -110 odds for under 8 runs. You may be wondering what the "implied" odds are for over 7.5 runs, and this is exactly what the half point calculator will determine for you. According to the half point calculator, over 7.5 runs should be approximately -129 odds. Thus, if you're able to find over 7.5 runs at -120 odds on a separate book, then it would be mathematically optimal to bet over 7.5 runs at -120 odds as opposed to over 8 runs at -110 odds.

The half point calculator is an invaluable tool because many sportsbooks offer "alternate" markets for spreads and totals.

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Frequently Asked Questions

What leagues does the Half Point Calculator work for?

The Half Point Calculator works for all major sports leagues including NFL, NCAAF, NBA, NCAAB, MLB, and NHL. The value of half points varies by sport, with football (NFL, NCAAF) having the most significant impact due to key numbers like 3 and 7, while basketball (NBA, NCAAB) and other sports typically have less dramatic half-point values.

How to Calculate Half Point?

The Half Point Calculator determines the fair odds for buying or selling half points by analyzing historical data and common pricing models used by sportsbooks. For example, in the NFL, buying a half point from +2.5 to +3 typically costs about 20 cents in odds (-110 to -130), while moving from +3 to +3.5 might cost even more due to the key number 3. The calculator accounts for these sport-specific factors to help you determine if the adjusted odds represent good value.

How can a Half Point Calculator help you in Sports Betting?

A Half Point Calculator helps you determine whether buying or selling half points offers value compared to the standard line. This is particularly valuable when betting on spreads or totals that are near key numbers. By comparing the adjusted odds to the fair price for that adjustment, you can make more informed decisions about when to pay for better numbers and when the standard line offers better expected value. Over time, making these optimal decisions can significantly improve your betting results.