Passer Rating Calculator
Enter recorded passing statistics to calculate NFL passer rating and NCAA passing efficiency side by side. Inspect the raw and clipped components, build a multi-game worksheet, and calculate a combined line from summed statistics.
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
a = (completions / attempts − 0.3) × 5 b = (yards / attempts − 3) × 0.25 c = (touchdowns / attempts) × 20 d = 2.375 − (interceptions / attempts) × 25 Clamp each component to [0, 2.375]. NFL = (a + b + c + d) / 6 × 100
Combined counts: Attempts 30 · Completions 20 · Passing yards 250 · Passing touchdowns 2 · Interceptions 1
Completions
Raw component: 1.833333
Used: 1.833333
Within range; unchanged.
Exact fraction
440 / 240
Yards
Raw component: 1.333333
Used: 1.333333
Within range; unchanged.
Exact fraction
320 / 240
Touchdowns
Raw component: 1.333333
Used: 1.333333
Within range; unchanged.
Exact fraction
320 / 240
Interceptions
Raw component: 1.541667
Used: 1.541667
Within range; unchanged.
Exact fraction
370 / 240
NFL passer rating = 100.6944444
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
- 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….
- 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.
- 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.