Passer Rating Calculator
Work out an NFL passer rating from attempts, completions, yards, touchdowns and interceptions, with each of the formula's four capped parts shown.
Result
Passer rating: 100.7
Each of the four parts is capped at 2.375, so no passer can rate above 158.3, and none below 0.
- Completion points
- 1.833
- Yards per attempt points
- 1.333
- Touchdown points
- 1.333
- Interception points
- 1.542
https://calcgallery.com/sports/passer-rating-calculator/
Results are exact arithmetic on the numbers you enter, following the rule or formula the page names. Official records are kept by the league, federation or association concerned, and their figures and rulings control. Read the full disclaimer
How to use the Passer Rating Calculator
- Enter the passer's attempts, completions, passing yards, touchdown passes and interceptions, for a game or a season.
- Read the passer rating to one decimal place, the way the NFL publishes it.
- Check the four part scores underneath to see which one is holding the rating up or down, and whether any has hit its 2.375 cap.
The NFL formula
The NFL’s Record & Fact Book rates a passer on four things, each worked out per attempt and scaled so that 1.000 is the fact book’s average standard:
a = (completions ÷ attempts − 0.3) × 5b = (yards ÷ attempts − 3) × 0.25c = touchdowns ÷ attempts × 20d = 2.375 − interceptions ÷ attempts × 25rating = (a + b + c + d) ÷ 6 × 100Each part is held between 0 and 2.375 before they are added. That is why completing 90% of passes earns no more than completing 77.5%, and why a string of interceptions cannot push the rating below zero.
Rounding
The fact book’s own worked example rounds the percentages and each part before adding them. The page keeps full precision until the end and rounds only the rating it shows, to one decimal place. For the fact book’s example, 343 of 502 for 4,643 yards, 45 touchdowns and 6 interceptions, both ways give 122.5.
Any number of attempts
The same formula works for one game or a whole career, as long as there is at least one attempt. A single game with few attempts swings widely, because one touchdown or interception is a large share of the total.
With your numbers
- a = (20 ÷ 30 − 0.3) × 5 = 1.833
- b = (250 ÷ 30 − 3) × 0.25 = 1.333
- c = 2 ÷ 30 × 20 = 1.333
- d = 2.375 − 1 ÷ 30 × 25 = 1.542
- Each part is held between 0 and 2.375
- Rating = (a + b + c + d) ÷ 6 × 100 = 100.7
Quick reference
Each of the four parts is capped at 2.375, so no passer can rate above 158.3, and none below 0.
| Example | Passer rating |
|---|---|
| 20 of 30, 250 yards, 2 TD, 1 INT | 100.7 |
| 343 of 502, 4,643 yards, 45 TD, 6 INT | 122.5 |
| 10 of 10, 200 yards, 2 TD: the maximum | 158.3 |
| 2 of 10, 10 yards, 3 INT: the minimum | 0.0 |
| 100 of 200, 1,400 yards, 10 TD, 11 INT | 66.7 |
| One completion for a 5-yard loss | 79.2 |
Common questions about the Passer Rating Calculator
- Why is the highest passer rating 158.3?
- Each of the four parts is capped at 2.375. Four capped parts add up to 9.5, and 9.5 ÷ 6 × 100 is 158.33. A passer reaches it by completing at least 77.5% of passes, averaging at least 12.5 yards an attempt, throwing a touchdown on at least 11.875% of attempts and no interceptions.
- What does a 100 rating mean?
- Only that the four parts add up to 6. The NFL scaled each part so that 1.000 is its average standard, set from the records of qualified passers from 1960 to 1970, so a passer at that standard in all four rates 66.7. The page does not say what counts as a good rating.
- Is this the same as ESPN's QBR?
- No. QBR is ESPN’s own measure, built from play-by-play data, and its formula is not published. Passer rating uses only the five numbers on this page and the NFL publishes it in full.
- Does college football use the same formula?
- No. The NCAA uses a different passing efficiency formula with no caps, so a college figure cannot be compared with an NFL rating. This page gives the NFL rating only.
- Why is an interception also an incompletion here?
- An intercepted pass is not caught by the passer’s team, so completions plus interceptions can never be more than attempts. The page refuses a line where they are, and says why.