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NCAA Passer Rating Calculator
Calculates the NCAA college football passer efficiency rating using completions, attempts, yards, touchdowns, and interceptions.
Calculator
Formula
Y = passing yards, T = touchdown passes, I = interceptions thrown, C = completions, A = pass attempts. Each component is weighted and divided by total attempts. Unlike the NFL formula, the NCAA formula is unbounded and linear.
Source: NCAA Football Statistics — Official NCAA Passer Efficiency Formula (NCAA.org)
How it works
The NCAA passer efficiency formula is: Rating = (8.4 × Yards + 330 × Touchdowns − 200 × Interceptions + 100 × Completions) / Attempts. Each passing statistic is assigned a weight that reflects its relative importance, and the total is divided by pass attempts to produce a per-attempt efficiency measure. Unlike the NFL's passer rating, the NCAA formula is linear and unbounded — there is no theoretical maximum.
The weights were derived empirically to produce a balanced measure of passing performance. Touchdowns receive the highest positive weight (330 per TD), meaning a single touchdown pass dramatically improves the rating. Interceptions carry the steepest penalty (−200 per INT), reflecting the high cost of turnovers. Passing yards (8.4 per yard) and completions (100 per completion) provide a baseline efficiency floor even without big plays.
The rating is widely used in sports analytics, recruiting evaluations, All-American selections, and conference leaderboards. It appears in the NCAA's official statistical rankings and is the primary quarterback metric for postseason honors such as the Davey O'Brien Award consideration and All-Conference teams.
Worked example
Consider a quarterback with the following stat line: 35 attempts, 22 completions, 275 yards, 3 touchdowns, 1 interception.
Step 1 — Calculate each weighted component:
Yards component: 8.4 × 275 = 2,310
Touchdown component: 330 × 3 = 990
Interception penalty: 200 × 1 = 200
Completion component: 100 × 22 = 2,200
Step 2 — Sum the components:
2,310 + 990 − 200 + 2,200 = 5,300
Step 3 — Divide by attempts:
5,300 / 35 = 151.4
A rating of 151.4 is considered excellent. For reference, the NCAA historically considers ratings above 150 to be outstanding, while a rating around 100 represents average performance.
Limitations & notes
The NCAA passer efficiency formula does not account for sack yards lost, scrambling ability, or the quality of opposing defenses faced. A quarterback playing against weak secondaries will naturally accumulate higher ratings than one facing top-ranked defenses. The formula also does not penalize for fumbles or reward for rushing touchdowns, making it a purely passing-specific metric. Because it is unbounded, extreme single-game performances (e.g., a 2-for-2, 80-yard, 2-TD, 0-INT line on limited attempts) can produce artificially inflated ratings. The NCAA requires a minimum of 15 attempts per game or 15 attempts per team game played for season rankings to qualify a passer for statistical leadership.
Frequently asked questions
What is considered a good NCAA passer efficiency rating?
Historically, a rating above 150 is considered excellent, 130–149 is above average, 100–129 is average, and anything below 100 is below average. The best single-season ratings among FBS leaders typically fall between 165 and 200.
How is the NCAA passer rating different from the NFL passer rating?
The NFL passer rating uses a capped, four-component formula where each stat is bounded between 0 and 2.375, producing a maximum of 158.3. The NCAA formula is linear and unbounded, using a single equation: (8.4Y + 330T − 200I + 100C) / A. The NCAA formula is simpler and can exceed 200 in exceptional performances.
Does the NCAA passer rating have a minimum attempts requirement?
Yes. For official NCAA statistical rankings, a quarterback must average at least 15 pass attempts per game (or 15 per team game played) to qualify for season-long passer efficiency leaderboards. Individual game ratings are calculated regardless of attempt count.
Why do interceptions carry such a heavy penalty (−200)?
The −200 coefficient for interceptions reflects the high cost of turnovers in football — an interception not only ends a drive but also gives the opponent possession, often in advantageous field position. This weight was chosen empirically so that throwing an interception roughly offsets the benefit of two to three completion yards.
Can the NCAA passer rating be negative?
Yes, mathematically it is possible. If a quarterback throws many interceptions relative to other statistics, the interception penalty (−200 per INT) can cause the numerator to be negative, yielding a negative rating. This is extremely rare in practice but can occur in very short or disastrous stat lines.
Is the NCAA passer efficiency rating the same as the QBR used in college football broadcasts?
No. The NCAA passer efficiency rating is the official statistical metric using the formula described here. ESPN's Total QBR (QBR) is a proprietary metric that also accounts for rushing, context, situation, and opponent difficulty. They measure different things and will often differ significantly for the same quarterback.
How do I use this calculator for a full season?
Simply enter cumulative season totals — total attempts, total completions, total passing yards, total touchdown passes, and total interceptions for the entire season. The formula works identically whether applied to a single game or an entire season of accumulated statistics.
Last updated: 2025-01-30 · Formula verified against primary sources.