NFL Passer Rating Calculator
Compute an NFL quarterback passer rating from completions, attempts, yards, touchdowns and interceptions using the official four-component formula.
How it works
a = ((C÷A − 0.3) × 5) · b = ((Y÷A − 3) × 0.25) · c = ((TD÷A) × 20) · d = (2.375 − (INT÷A) × 25) · each clamped to 0–2.375 · Rating = ((a + b + c + d) ÷ 6) × 100
The NFL passer rating scores four ratios — completion percentage, yards per attempt, touchdown rate and interception rate — on a 0-to-2.375 scale, then averages them and rescales to a familiar 0–158.3 range. Each component is capped, so a quarterback cannot make up a bad interception rate with an absurd yards figure. A rating of 158.3 is the maximum (a "perfect" passer rating), and 66.7 is the score for a perfectly average passer in every category.
Worked example
For 28 of 40 for 320 yards, 3 TD and 1 INT: a = (0.7 − 0.3) × 5 = 2.0; b = (8 − 3) × 0.25 = 1.25; c = (3÷40) × 20 = 1.5; d = 2.375 − (1÷40) × 25 = 1.75. Sum 6.5, ÷ 6 = 1.0833, × 100 = 108.3.
Sources: NFL passer rating — Wikipedia
Frequently asked questions
What is a perfect passer rating?
The maximum is 158.3. It requires maxing out all four components: at least a 77.5% completion rate, 12.5 yards per attempt, a touchdown on 11.875% of attempts and zero interceptions.
Why is the scale capped at each component?
Each of the four ratios is clamped between 0 and 2.375 so no single category can dominate. That is why a huge yards-per-attempt game still cannot fully offset a high interception rate.
Is this the same as ESPN’s QBR?
No. This is the traditional NFL passer rating, which uses only the box-score passing line. ESPN’s Total QBR is a separate proprietary metric that also weighs game situation, rushing and other factors.
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