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Point Spread Calculator
Convert a point spread into an implied win probability and the equivalent margin cushion.
🏈 Free Online Tool
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Convert a point spread into an implied win probability and the equivalent margin cushion.
Point Spread Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Key numbers like 3 and 7 matter in football because many games end on those margins.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Point Quick Guide
Typical values for reference.
| Spread | Favourite Win | Underdog Win | Note |
|---|---|---|---|
| 3 | 59% | 41% | Field goal |
| 7 | 70% | 30% | Touchdown |
| 10 | 77% | 23% | Large |
| 14 | 85% | 15% | Heavy |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Point Spread Calculator FAQ
Answers to common questions about this calculator.
The margin by which the favourite is expected to win.
It implies one under a model.
No.
Typical NFL margin variability.