NCAA Passing Efficiency Calculator
Calculate college passing efficiency with the NCAA formula. See how yards, touchdowns, completions and interceptions contribute, inspect the unrounded fractions, and combine a set of games from their totals.
Combined ratings use summed attempts, completions, yards, touchdowns and interceptions across every game below. Individual game ratings are never averaged. N/A means zero attempts, not zero performance.
Selected game
Use recorded passing statistics, including explicit zeroes. Completions include passing touchdowns. Interceptions are separate from completions. Signed passing yards are accepted; use the passing-yard total under your league’s statistical convention.
This game: NFL 100.694 · NCAA 152.000
Game worksheet
1/500 games| Game | Attempts | NFL rating | NCAA rating | Remove |
|---|---|---|---|---|
| 30 | 100.694 | 152.000 |
Select a game name to edit its statistics. Zero-attempt games are retained in the worksheet with N/A ratings; valid zero rows do not change the combined totals.
Formula breakdown
NCAA = (8.4 × yards + 330 × touchdowns + 100 × completions − 200 × interceptions) / attempts No component clipping is applied.
Combined counts: Attempts 30 · Completions 20 · Passing yards 250 · Passing touchdowns 2 · Interceptions 1
Yards
Contribution: 70.000000
Exact fraction
21000 / 300
Touchdowns
Contribution: 22.000000
Exact fraction
6600 / 300
Completions
Contribution: 66.666667
Exact fraction
20000 / 300
Interceptions
Contribution: -6.666667
Exact fraction
-2000 / 300
NCAA passing efficiency = 152.0000000
Ratings above use three decimal places; this breakdown shows six-place components and a seven-place rating. Each is rounded independently from exact fractions, half away from zero. Rounded component displays are never fed back into the final rating.
NFL passer rating is not ESPN Total QBR. NCAA passing efficiency has no NFL-style 158.333 cap and can be negative. These scales are not directly comparable. Neither formula includes rushing, sacks as separate inputs, opponent strength or game situation.
Keep the calculation
CSV includes every game and the combined line, both ratings, exact rating numerators/denominators, and raw/clipped NFL components. N/A marks zero attempts. Formula-like game labels are prefixed with an apostrophe. Import numeric columns as text if your spreadsheet must preserve all digits.
Uses the named NFL and NCAA passer-rating formulas on entered statistics. No performance forecast, ranking advice, betting recommendation or live data feed. Whole counts up to 1,000,000,000 per field per game; signed yards use the same absolute bound. Processing stays local. The worksheet is not automatically saved. Export before leaving; undo/redo retains 50 edits.
Common questions
- How does NCAA passing efficiency differ?
- NCAA passing efficiency is (8.4 × yards + 330 × touchdowns + 100 × completions − 200 × interceptions) divided by attempts. It has no NFL-style component clipping or 158.333 cap and can be negative. The two formulas use different scales and are not directly comparable.
- What is the NFL passer-rating formula?
- Calculate a = (completions/attempts − 0.3) × 5, b = (yards/attempts − 3) × 0.25, c = (touchdowns/attempts) × 20 and d = 2.375 − (interceptions/attempts) × 25. Clamp each component separately to 0–2.375. Add the four clipped components, divide by 6 and multiply by 100. The maximum is 158.333….
- Why does zero attempts show N/A?
- Both formulas divide by attempts. With zero attempts, the rating is undefined, not zero. A zero-attempt game must have zero values in the other fields; it can remain in the worksheet without changing the combined totals.
- How is a season or multi-game rating calculated?
- Sum attempts, completions, passing yards, passing touchdowns and interceptions across the games, then apply each formula to those totals. Do not average the individual game ratings. NFL clipping can also make an attempts-weighted average differ from the rating of combined statistics.
- Which statistics and values can I enter?
- Use whole recorded passing statistics. Completions cannot exceed attempts; passing touchdowns cannot exceed completions; completions plus interceptions cannot exceed attempts. Signed passing yards are accepted. Counts support 0–1,000,000,000 per field per game, and yards support that absolute bound. Invalid games block combined ratings and export.
- How are displayed values rounded?
- The calculator uses exact integer fractions for both formulas. Main ratings are rounded to three decimal places, components to six, and the detailed rating to seven, using half-away-from-zero rounding. Clipping and final calculations use the exact values rather than rounded component displays.
- Is passer rating the same as QBR?
- No. NFL passer rating is the traditional four-component passing formula. ESPN Total QBR is a different metric. This tool does not calculate QBR or account for rushing, opponent strength, game situation or sacks as separate inputs. Enter passing-yard totals under the statistical convention you are using.
- What is saved or exported?
- The worksheet stays in browser memory and is not uploaded or automatically saved. Up to 500 games are supported, with undo/redo for the latest 50 edits. CSV includes all games and a combined line, both ratings, exact rating numerators and denominators, and raw/clipped NFL components. Formula-like game labels are prefixed with an apostrophe.
Uses the named NFL and NCAA passer-rating formulas on entered statistics. No performance forecast, ranking advice, betting recommendation or live data feed.