Is this the same as ESPN's official Total QBR?

No. ESPN's Total QBR uses proprietary win-probability-added, expected-points-added, and clutch-weighting data that ESPN does not fully publish, so it cannot be reproduced from box-score stats alone. This tool is a simplified, transparent efficiency estimate on a similar 0-100 scale, built only from public stats. Treat it as an approximation, not the official number.

What stats does this calculator use?

Completions, attempts, passing yards, passing touchdowns, interceptions, sacks taken, and rushing yards and touchdowns. All of these are standard box-score numbers available for any game.

How is the score calculated?

It starts from the standard NFL passer rating formula (completion percentage, yards per attempt, touchdown rate, and interception rate, each capped), rescales that to a 0-100 range, then subtracts a penalty based on sack rate and adds a bonus based on rushing yards and touchdowns per play.

Why include sacks and rushing yards at all?

The standard NFL passer rating ignores both, which can make a quarterback who takes a lot of sacks or contributes nothing on the ground look identical to one who protects the pocket or adds rushing value. This estimator adjusts for both to give a fuller efficiency picture.

What counts as a good score on this scale?

The scale runs roughly 0-100, centered so an average starting-caliber performance lands near 50. Scores above about 75 represent an efficient game, and scores above 90 represent an elite one. These bands are illustrative, not official QBR bands.

Can the score go negative or above 100?

The final score is clamped to 0-100. A very poor performance (many interceptions, sacks, few completions) floors at 0, and an exceptional one caps at 100, even if the underlying math would push past those bounds.

QBR Calculator

Name: QBR Calculator
Availability: InStock
Author: Nham Vu

Enter passing and rushing stats to get a simplified, 0-100 quarterback efficiency estimate, not ESPN's proprietary Total QBR.

Passing & Rushing Stats

This is a simplified approximation, not ESPN's proprietary Total QBR.

Completions

Attempts

Passing Yards

Passing TDs

Interceptions

Sacks Taken

Rushing Yards

Rushing TDs

0.0

Estimated QBR (0-100 scale)

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Score Breakdown

Completion % 0.0%

Yards / Attempt 0.0

TD Rate 0.0%

INT Rate 0.0%

Base Passer Rating 0.0

Sack Rate 0.0%

Rushing Yards / Play 0.0

Base passer rating uses the standard NFL formula from completion percentage, yards per attempt, touchdown rate, and interception rate, rescaled to 0-100. Sack rate then subtracts points and rushing production adds points back, before clamping the result to 0-100.

Summary

Enter passing and rushing stats to get a simplified, 0-100 quarterback efficiency estimate, not ESPN's proprietary Total QBR.

How it works

Enter completions, attempts, passing yards, passing touchdowns, and interceptions.
Add sacks taken and rushing yards and touchdowns, if any (leave at 0 if not tracking those).
The tool computes a standard passer rating from the passing stats, then rescales it to a 0-100 range.
A sack-rate penalty and a rushing-production bonus adjust the base score.
The final score, and each component behind it, updates live as you type.

Use cases

Compare two quarterbacks' box-score efficiency using stats anyone can look up.
Estimate a rough efficiency score for a fantasy football or dynasty league discussion.
Check how much a mobile quarterback's rushing stats change their overall efficiency picture.
See how sacks taken pull down an otherwise strong passing performance.
Build a quick post-game efficiency snapshot without access to ESPN's proprietary data feed.
Teach the difference between a box-score passer rating and a win-probability-based rating like real QBR.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu