Performance Breakdown
Rating Scale Reference
How to Use This Tool
Toggle the formula at the top for NFL or NCAA. Enter the five passing stats, including decimals for season averages if needed. The rating calculates instantly.
Quarterback efficiency can affect spreads, totals, and moneyline pricing. For a price check after evaluating a matchup, compare the expected spread with the Spread Converter.
What the numbers mean: NFL ratings—90 is good, 100 is great, 110+ is elite. NCAA ratings run 50-80 points higher. The comparison chart shows both formulas side-by-side.
Perfect NFL rating (158.3) requires: 77.5%+ completion, 12.5+ YPA, 11.875%+ TD rate, 0% INT rate. This happens maybe 5-10 times per season, usually in blowouts.
NFL vs. NCAA Formula Differences
Don Smith created the NFL version in 1971. The NCAA adopted a different formula in 2011. Both measure completions, yards, touchdowns, and interceptions. Neither includes rushing stats, sacks, or fumbles.
Pro Tip: Recent Form Beats Season Stats
Always compare the QB's season rating against their last 3 games. A 110-rated QB who's posted 85, 82, 90 in recent weeks is trending down—and the market hasn't fully adjusted yet.
NFL Formula: Four Components
The NFL formula uses four equally weighted components, each capped at 2.375:
| Component | Measures | Range |
|---|---|---|
| A Completion % | Accuracy | 30% to 77.5% |
| B Yards/Attempt | Downfield passing | 3.0 to 12.5 YPA |
| C TD % | Scoring efficiency | 0% to 11.875% |
| D INT % | Turnover avoidance | Lower is better |
Formula: ((A + B + C + D) / 6) × 100 = Rating (0 to 158.3). Perfect ratings require 77.5%+ completion, 12.5+ YPA, 11.875%+ TD rate, and zero interceptions. Occurs 5-10 times per NFL season.
NCAA Formula: Linear and Uncapped
Formula: (8.4 × Yards) + (330 × TDs) + (100 × Completions) - (200 × INTs) / Attempts
No caps. No component limits. NCAA ratings typically run 50-80 points higher than NFL ratings for equivalent performance. A 160 NCAA rating ≈ 100 NFL rating.
Rating Benchmarks
| Level | NFL Rating | NCAA Rating |
|---|---|---|
| Elite | 110+ | 180+ |
| Great | 100-109 | 160-179 |
| Good | 90-99 | 140-159 |
| Average | 80-89 | 110-139 |
Aaron Rodgers holds the NFL single-season record at 122.5 (2011). League average hovers around 89-92.
Betting Insight: The 20-Point Rule
A large passer-rating gap can explain why one team is priced as the favorite, but it should not be treated as a standalone spread edge. Opponent quality, pressure rate, injuries, weather, and game script can change how much that efficiency matters.
Impact on Handicap & Spreads
QB rating differentials can influence football betting markets because passing efficiency is closely tied to scoring, comeback ability, and turnover risk. A strong rating edge is most useful when it is supported by recent form, opponent-adjusted performance, healthy receivers, and solid pass protection.
The rating should be used as one input, not a complete model. Weather, defensive pressure, home/road splits, injuries, play-calling, and garbage-time production can all distort the number. A quarterback with a strong season rating may still be overpriced if recent efficiency is falling or the matchup creates pressure.
After comparing quarterback efficiency, use the Spread Converter to translate a point spread into an estimated moneyline and win probability. That makes it easier to compare a performance view against the market price.
Rating vs. Spread Correlation
| QB Rating Difference | Typical Line Movement | Typical Interpretation |
|---|---|---|
| 20+ point difference | 2-4 point spread impact | Major efficiency edge, but matchup context still matters |
| 10-20 point difference | 1-2 point spread impact | Moderate edge that should be checked against recent form |
| <10 point difference | Minimal direct impact | Small edge that rarely justifies a bet by itself |
What's Not Included
| Excluded Stat | Why It Matters |
|---|---|
| Rushing Yards/TDs | Mobile QBs like Lamar Jackson add major value not captured in rating |
| Sacks | Pocket presence and avoiding pressure don't count |
| Fumbles | Ball security issues aren't penalized |
| Two-Point Conversions | Passing 2PTs don't count as TDs |
| Game Situation | Garbage time stats count the same as competitive performance |
| Pressure Stats | Clean pocket vs pressured throws aren't distinguished |
Methodology and Assumptions
This calculator uses the standard NFL passer rating formula when NFL mode is selected and the standard NCAA passing efficiency formula when NCAA mode is selected.
NFL passer rating is built from four capped components: completion rate, yards per attempt, touchdown rate, and interception rate. NCAA passer rating uses the same inputs but weights them differently and does not use the NFL component caps.
The result measures passing efficiency only. It should be compared with context like opponent strength, pressure rate, rushing value, turnovers, and game situation. Betting examples on this page are directional references, not predictions.
How NFL passer-rating components are bounded
The NFL formula creates four components from completion percentage, yards per attempt, touchdown rate, and interception rate. Each component is limited to the range from 0 to 2.375 before the four are added, divided by 6, and multiplied by 100. The caps mean extreme stat lines do not change rating in a simple linear way. A hand calculation should apply each cap before combining the components.
Totals must come from one clearly defined sample. Combining completions from one period with attempts or touchdowns from another produces a number that does not describe either sample. For season or multi-game work, add the underlying attempts, completions, yards, touchdowns, and interceptions first and then calculate the rating. Averaging game-by-game passer ratings gives different weight to low-attempt and high-attempt games.
Passer rating is not a complete quarterback evaluation. It excludes sacks, rushing production, fumbles, opponent strength, down and distance, pressure, accuracy beyond completions, and game situation. Use it as a labeled passing-efficiency measure, preserve whether NFL or NCAA mode was selected, and keep the raw stat line beside the result so the calculation can be checked.
Questions about Qb Rating Calculator
Which statistics enter NFL passer rating?
Completions, attempts, passing yards, passing touchdowns, and interceptions feed four capped components in the NFL formula.
Is NCAA passer efficiency calculated the same way?
No. College passer efficiency uses different weights and does not apply the NFL component caps. Results from the two systems should be labeled separately.
Does passer rating include sacks or rushing?
Traditional passer rating does not directly include sacks, rushing yards, rushing touchdowns, fumbles, or game situation.
Can passer rating compare quarterbacks from any era?
It can provide one common formula, but league rules, passing environments, opponents, and styles change. Era context remains necessary.
What happens when attempts are zero?
A passing-efficiency formula cannot be evaluated meaningfully without an attempt denominator. Enter a valid passing stat line from one defined game or sample.