About the Passer Rating Calculator
This passer rating calculator works out the official NFL quarterback rating and the NCAA passing efficiency rating from a single stat line. Enter completions, attempts, passing yards, touchdown passes and interceptions — for one game, a season or a career — and see both ratings along with the four NFL components that drive the number.
It is handy for fantasy football players comparing quarterbacks, coaches and stat keepers for high school and college teams, and fans who want to know exactly why a quarterback’s rating moved. The component breakdown shows which part of the game — accuracy, yards per attempt, touchdowns or avoiding interceptions — is helping or hurting.
The NFL formula caps each component, so the maximum is a “perfect” 158.3. The NCAA formula has no cap and typically produces higher numbers, so the two scales are not directly comparable.
With the default inputs, the nfl passer rating is 114. Change any value above to recalculate instantly.
How to use the passer rating calculator
- 1Enter completions and pass attempts.
- 2Enter total passing yards (can be negative for a very poor game).
- 3Enter touchdown passes and interceptions.
- 4Read the NFL rating and NCAA efficiency, then check the components to see what drove the number.
Formula and method
The NFL rating averages four components, each limited to between 0 and 2.375: a = (Comp/Att − 0.3) × 5; b = (Yds/Att − 3) × 0.25; c = TD/Att × 20; and d = 2.375 − Int/Att × 25. The sum is divided by 6 and multiplied by 100, so a quarterback maxing every component earns a perfect 158.3, and one at the floor on everything earns 0.
The NCAA passing efficiency formula is a single weighted sum per attempt with no caps, weighting yards, touchdowns and completions positively and interceptions negatively. Because it is uncapped it runs on a larger scale than the NFL rating, and a strong college season is usually well above 150.
- Comp
- Completed passes
- Att
- Pass attempts
- Yds
- Passing yards
- TD, Int
- Touchdown passes and interceptions thrown
Worked examples
Strong game: 25/35, 300 yards, 3 TD, 1 INT
Completing 71.4% gives a = 2.071, 8.57 yards per attempt gives b = 1.393, an 8.6% TD rate gives c = 1.714 and a 2.9% INT rate gives d = 1.661. Their sum ÷ 6 × 100 is a 114.0 NFL rating; the NCAA formula gives 166.0.
Perfect passer rating: 20/25, 350 yards, 4 TD, 0 INT
80% completions, 14 yards per attempt, a 16% TD rate and no interceptions each hit the 2.375 cap, so the NFL rating is the maximum 158.3. The uncapped NCAA formula gives 250.4.
Rough day: 10/30, 80 yards, 0 TD, 4 INT
A 33% completion rate earns only a = 0.167, and 2.67 yards per attempt, no touchdowns and a 13% interception rate all floor at 0. The NFL rating is just 2.8.
Frequently asked questions
What is a perfect passer rating?+
A perfect NFL passer rating is 158.3. It requires at least 77.5% completions, 12.5 yards per attempt, touchdowns on 11.875% of attempts and no interceptions — every component then hits its 2.375 cap.
What is a good NFL passer rating?+
In recent NFL seasons the league-average passer rating has been in the high 80s to low 90s. Over 100 across a season is very good, and 110+ is typically among the best in the league.
Is passer rating the same as QBR?+
No. Passer rating uses only five box-score stats. ESPN’s Total QBR is a proprietary 0–100 metric that also accounts for rushing, sacks, game situation and the value of each play.
Why is the NCAA rating higher than the NFL rating?+
The NCAA passing efficiency formula uses different weights and has no caps, so the numbers run on a larger scale. Compare quarterbacks only within the same scale.
What is the lowest possible passer rating?+
The NFL rating cannot go below 0, because every component is floored at zero. A 0.0 is rare; a 39.6 is what a quarterback gets for throwing only incompletions with no interceptions.