Half Point Calculator
What is Half-Point Betting?
Half-point betting allows you to buy or sell 0.5 points on spreads and totals to move the line in your favor. This can help avoid pushes and improve your chances of winning, though it typically comes at the cost of worse odds.
This calculator shows you the adjusted spreads and corresponding odds when buying or selling half points, helping you decide if the price is worth paying.
Enter Bet Details
Results
Half Point Analysis
- Sport Type: -
- Bet Type: -
- Original Odds: -
- Original Implied Probability: -%
- Spread: -
Buy Half Point (0.5) Results
Buy Favorite (-0.5)
Spread: -
New Odds: -
New Probability: -%
Buy Underdog (+0.5)
Spread: -
New Odds: -
New Probability: -%
Buy Full Point (1.0) Results
Buy Favorite (-1.0)
Spread: -
New Odds: -
New Probability: -%
Buy Underdog (+1.0)
Spread: -
New Odds: -
New Probability: -%
How to Use This Calculator
The Half Point Calculator helps you determine the value of buying or selling half a point in major sports leagues.
- Odds: Enter current odds (supports multiple formats: decimal, fractional, American, etc.)
- Spread: The current spread or total (e.g., 7 for 7-point spread or over/under 7)
- Bet Type: Spread uses key number analysis, Total uses fixed adjustment values
- Sport Type: Select sport type for accurate analysis (NFL, NBA, CBB use key numbers, Soccer uses fixed values)
This calculator will show you the new odds and spreads when buying or selling half a point.
Key Numbers Explanation
NFL
Key numbers: 3 pts (2.2%), 7 pts (3.5%), 10 pts, 14 pts, etc. These are the most common winning margins in NFL.
NBA
Key numbers: 1-3 pts (1-2%), 5 pts, 7 pts, etc. Common small-margin victories in basketball.
CBB
Key numbers: 2-3 pts (1.2-1.8%), 5 pts, 7 pts, etc. College basketball margin patterns.
Soccer
Fixed adjustment: 0.5% for half goal, 1% for full goal. Soccer has no specific key numbers, uses uniform adjustment.
Bet Type Differences
Spread (Point Spread)
Uses historical key number statistics, different margins have different adjustment magnitudes. NFL 3-point and 7-point adjustments are largest.
Total (Over/Under)
Uses fixed adjustment values (0.5% for half point, 1% for full point), mainly to avoid pushes.
Usage Tips
- Spread betting: Buying points on key numbers has highest value (e.g. NFL 3-point, 7-point)
- Total betting: Mainly consider avoiding pushes, fixed cost is relatively low
- Compare buy half point vs buy full point cost difference, choose the most cost-effective option
- Use this tool to compare point buying pricing across different sportsbooks
