NFL QB Passer Rating Calculator
Enter a quarterback's passing line below to calculate official NFL passer rating (0.0 to 158.3).
Tip: Use passing stats only (not rushing stats).
What is a QB passer rating?
A quarterback passer rating is a traditional NFL efficiency stat that combines four passing outcomes into one number: completion rate, yards per attempt, touchdown rate, and interception rate. The result ranges from 0.0 to 158.3.
This calculator uses the official NFL formula, including the standard cap on each sub-component. That means your result will match box-score style passer rating calculations used across major football stats sites.
How the NFL passer rating formula works
The NFL formula builds four values, often labeled a, b, c, d. Each value is capped between 0 and 2.375:
- a = ((Completions / Attempts) - 0.3) × 5
- b = ((Passing Yards / Attempts) - 3) × 0.25
- c = (Touchdowns / Attempts) × 20
- d = 2.375 - ((Interceptions / Attempts) × 25)
Once each component is clipped to the 0–2.375 range, the final rating is:
Passer Rating = ((a + b + c + d) / 6) × 100
Why this stat still matters
Even in the era of advanced metrics, passer rating is still widely referenced in broadcasts, fantasy football recaps, and historical comparisons. It is quick, familiar, and easy to benchmark across eras when used carefully.
Quick interpretation guide
- 110+: Elite passing performance
- 95–109.9: Very strong
- 85–94.9: Solid / above average
- 75–84.9: Average to below average
- Below 75: Struggling passing game
Example calculation
Suppose a QB goes 24-for-35 with 287 yards, 3 touchdowns, and 1 interception. Plugging those numbers into the formula produces a passer rating in the low 100s, a strong game by NFL standards.
Instead of running each step manually, use the calculator above to get:
- Final passer rating
- Component breakdown (a, b, c, d)
- Simple performance label
Limitations of passer rating
No single number can fully summarize quarterback play. Passer rating does not directly include:
- Sacks taken and sack avoidance
- Rushing production
- Game context (garbage time vs. high-leverage moments)
- Receiver drops, pass protection quality, and play calling tendencies
That is why analysts often pair passer rating with stats like EPA/play, QBR, yards per dropback, and film review.
Frequently asked questions
Is a perfect passer rating 160?
No. In the NFL formula, the maximum is 158.3.
Can passer rating be negative?
Not in the official NFL system. It bottoms out at 0.0 because each formula component is clipped at zero.
Is college passer rating the same as NFL passer rating?
No. NCAA passing efficiency uses a different formula and produces values on a different scale. This page calculates NFL passer rating.
Final thoughts
If you want a fast, reliable way to evaluate passing efficiency, this QB passer rating calculator gives you a clean answer instantly. It is ideal for post-game checks, fantasy football analysis, and quick quarterback comparisons.