Completion Percentage Calculator
Calculate a quarterback's completion percentage.
Results update as you type.
How it works
Completion percentage is a core measure of a quarterback's passing accuracy, and this calculator computes it. You enter the number of completed passes and total pass attempts, and it returns the completion percentage. The calculation divides completions by attempts and multiplies by 100, showing the share of passes that were caught by a receiver for a completion. It is one of the most cited passing statistics because accuracy is fundamental to moving the ball and sustaining drives. What counts as good has risen over time as passing offenses evolved: historically 60 percent was a benchmark for a solid season, but modern elite quarterbacks often complete 65 to 70 percent or more, while below 60 percent is now considered below average for a starter. Context matters, though — a quarterback who throws many deep passes will have a lower completion percentage than one relying on short throws, even if the deep passer is more valuable, which is why analysts also look at yards per attempt and advanced metrics. Completion percentage is easy to compute and understand, making it a staple of broadcasts, box scores, and fantasy football. This calculator works for a single game, a season, or a career. Enter the completions and attempts to calculate the completion percentage.
Completion % = completions ÷ pass attempts × 100
Completion percentage is the number of completed passes divided by total pass attempts, then multiplied by 100. It measures how accurately a quarterback delivers catchable, completed throws relative to how many they attempt, with higher percentages indicating better accuracy and passing efficiency across a game, season, or career.
Source:Football statistics
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter completions and pass attempts.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Completion percentage updates instantly as you type — no button to press.
Frequently asked questions
How do you calculate completion percentage?
Divide the number of completed passes by the total number of pass attempts, then multiply by 100. A quarterback who completes 20 of 30 passes has a completion percentage of about 66.7 percent. It measures passing accuracy — the share of attempts that resulted in a catch — and works for a game, season, or career.
What is a good completion percentage?
Standards have risen with modern passing offenses. Historically 60 percent marked a solid season, but today elite quarterbacks often complete 65 to 70 percent or more, and below 60 percent is generally below average for a starter. Context matters, since a deep-passing quarterback may post a lower percentage than a short-passing one yet be more effective.
Does completion percentage tell the whole story?
No. It measures accuracy but not how far or how valuable the passes are. A quarterback throwing many short passes can have a high completion percentage without gaining much yardage, while a deep-ball passer may complete fewer but more impactful throws. Analysts pair it with yards per attempt, touchdowns, and advanced metrics for a fuller picture.
Why has completion percentage risen over time?
Rule changes favoring the passing game, the spread of quick-passing and West Coast offenses, better quarterback coaching, and defensive rules protecting receivers have all made completions easier. As a result, league-average completion percentage has climbed over the decades, so historical comparisons should account for the era in which a quarterback played.
What counts as a completion?
A completion is a forward pass caught in bounds by an eligible offensive receiver who maintains control. Incompletions, interceptions, and passes dropped or thrown away all count as attempts but not completions, lowering the percentage. Spikes to stop the clock count as attempts too. This calculator uses your entered completions and attempts as recorded in the box score.