Passer Rating Calculator (NFL & NCAA)
NFL passer rating and NCAA passing efficiency from attempts, completions, yards, touchdowns and interceptions, with each part of the NFL formula.
The NFL passer rating (0 to 158.3) with its four capped parts, the NCAA passing-efficiency rating, completion percentage, yards per attempt and touchdown and interception rates.
Example: 270 of 400 for 3,200 yards, 25 touchdowns and 8 interceptions: NFL passer rating 104.2, NCAA passing efficiency 151.3.
Four parts,
each capped.
How the NFL formula builds a rating from four capped parts, why 158.3 is perfect, how the college formula differs, and what neither rating measures.
The four parts
Each part is scaled so that a league-average season once scored about 1: completions (Cmp/Att − 0.3) × 5, yards (Yds/Att − 3) × 0.25, touchdowns TD/Att × 20 and interceptions 2.375 − Int/Att × 25. Every part is held between 0 and 2.375, so no single strength can carry the rating.
Adding up
The rating is the sum of the four ÷ 6 × 100. With every part at its 2.375 cap the rating is 158.3 — a “perfect” game needs at least 77.5 % completions, 12.5 yards an attempt, a touchdown on 11.875 % of passes and no interceptions.
College efficiency
The NCAA formula has no caps and a different scale: (8.4 × yards + 330 × touchdowns + 100 × completions − 200 × interceptions) ÷ attempts. A college figure and an NFL figure are not comparable.
What the rating does not settle
Sacks, runs, fumbles and game situation are outside both formulas; ESPN’s QBR is a separate proprietary model and is not computed here. Inputs stay in your browser; the same anonymous usage counts as the rest of the site apply.
SOURCES
- NFL Record & Fact Book — passer rating formula
- NCAA Football Statisticians’ Manual — passing efficiency formula
Last reviewed 24 September 2026. How results are checked: How we verify.