Passer Rating Calculator
Calculate the NFL passer rating from completions, attempts, yards, touchdowns, and interceptions using the official four-component formula.
The NFL rating averages four components — completion %, yards per attempt, TD rate, and interception rate — each capped between 0 and 2.375. A flawless line maxes out at 158.3.
How it works
The NFL passer rating looks intimidating but it's really four small stats bundled together: completion percentage, yards per attempt, touchdown rate, and interception rate. Each one becomes a component score.
Every component is capped between 0 and 2.375, so no single ridiculous game can send the rating to infinity. A quarterback who completes 77.5% of passes, for example, maxes out that first component and any better number doesn't help further.
Add the four components, divide by six, and multiply by 100. Do everything perfectly and you hit the famous ceiling of 158.3 — the number people mean when they talk about a 'perfect passer rating.'
Frequently asked questions
Why is a perfect rating 158.3?
That's what you get when all four components hit their 2.375 cap: (2.375 × 4 ÷ 6) × 100 rounds to 158.3. The caps are the reason the scale tops out there instead of running higher.
Is this the same as ESPN's QBR?
No. This is the traditional NFL passer rating, based only on the passing box score. ESPN's Total QBR is a separate, more complex metric that factors in situation, rushing, and more.
What's a good passer rating?
Roughly speaking, a rating over 100 is a strong game, the high 80s to 90s is solid, and anything under about 70 is a rough day. Season-long leaders usually sit above 100.