Passer Rating Calculator
Find an NFL quarterback's passer rating.
NFL passer rating condenses passing stats into a 0–158.3 scale.
How the Math Works
The Passer Rating Calculator employs a standardized formula to evaluate quarterback performance by averaging four distinct statistical components, each capped between 0 and 2.37. These components include completion percentage (completions/attempts), yards per attempt (total yards/attempts), touchdowns per attempt (touchdowns/attempts), and interceptions per attempt (interceptions/attempts). Each component is normalized using specific coefficients (e.g., 0.25 for completions, 0.2 for yards) and adjusted to ensure no single metric disproportionately influences the final score. The capped values are summed, averaged, and multiplied by 100/6 to produce a final rating between 0 and 158.3, providing a balanced measure of efficiency.
Practical Applications
To calculate a quarterback's rating, input their game or season statistics: completions, attempts, passing yards, touchdowns, and interceptions. The calculator processes these values by first determining each component's contribution, applying capping mechanisms to maintain fairness, and then averaging the results. For instance, a QB with 25 completions on 40 attempts, 300 yards, 2 touchdowns, and 1 interception would have their stats transformed into normalized scores, combined, and scaled to produce a single rating. This simplifies complex performance data into a digestible metric for comparison across players or time periods.
Day-to-Day Use
Passer rating is a widely recognized benchmark in football discussions, helping fans, analysts, and coaches quickly assess a quarterback's effectiveness. Whether debating a player's value during a game broadcast, comparing candidates for fantasy leagues, or analyzing trends in sports journalism, the rating offers an objective snapshot of performance. Coaches might use it to adjust play-calling strategies, while casual viewers can better understand a QB's impact beyond basic stats like yardage. Its simplicity and standardization make it an essential tool for contextualizing football analytics in everyday conversations.
Worked example
20/30, 250 yds, 2 TD, 1 INT → about 97.9.
FAQ
What's a perfect rating?
158.3 — the maximum when all four components hit their cap.