Player Efficiency Rating (PER) Calculator
Instantly compute a player’s overall on-court value with our detailed Player Efficiency Rating Calculator. A key tool for any basketball enthusiast.
Total minutes played in the season.
Total points scored.
Total shots made (2-pointers and 3-pointers).
Total shots attempted.
Total three-point shots made.
Total free throws made.
Total free throws attempted.
Number of passes that led directly to a made basket.
Total offensive and defensive rebounds.
Rebounds secured after your team’s missed shot.
Number of times taking the ball from an opponent.
Number of shots deflected.
Number of times losing possession of the ball.
Total personal fouls committed.
Player Efficiency Rating (Simplified)
Chart: Positive vs. Negative Statistical Contributions
What is the Player Efficiency Rating (PER)?
The Player Efficiency Rating (PER) is an all-in-one basketball statistic developed by former ESPN columnist and current Memphis Grizzlies executive John Hollinger. Its purpose is to boil down all of a player’s contributions—both positive and negative—into a single, per-minute number. A league-average PER is always standardized to 15.00, which allows for easy comparison of player performance across different eras and seasons.
This player efficiency rating calculator helps players, coaches, and fans quantify a player’s statistical output. Unlike traditional box score stats, PER accounts for pace of play and minutes played, providing a more balanced measure of a player’s on-court effectiveness. For more on advanced metrics, you can explore tools like our Basketball Player Performance Calculator.
The PER Formula and Explanation
The full PER formula is quite complex, involving league-average statistics to provide context. This calculator uses a widely accepted simplified version, often called Efficiency (EFF), which provides a strong foundational value. The simplified formula is:
(Points + Rebounds + Assists + Steals + Blocks) – (Missed Field Goals + Missed Free Throws + Turnovers)
The true, unadjusted PER (uPER) calculation, which this calculator also processes, involves weighting each statistic. While our tool handles the math, understanding the components is key. The formula subtracts negative plays (missed shots, turnovers) from positive plays (baskets, assists, rebounds). You can see how this compares to other metrics like Quarterback Rating in football, which also synthesizes multiple stats.
Variables Table
| Variable | Meaning | Unit | Typical Range (Per Game) |
|---|---|---|---|
| PTS | Points Scored | Points | 5 – 35 |
| TRB | Total Rebounds | Rebounds | 2 – 15 |
| AST | Assists | Assists | 1 – 12 |
| FGA | Field Goals Attempted | Shots | 5 – 25 |
| TOV | Turnovers | Turnovers | 0 – 5 |
Practical Examples
Example 1: All-Star Guard
Let’s calculate the PER for a star player over a season.
- Inputs: 2500 MP, 2200 PTS, 800 FGM, 1600 FGA, 250 3PM, 350 FTM, 400 FTA, 500 AST, 450 TRB, 80 ORB, 150 STL, 50 BLK, 250 TOV, 180 PF
- Calculation: The calculator processes these inputs through the simplified formula.
- Result: This player would have a high PER, likely in the 25.0-30.0 range, indicating an MVP-caliber season.
Example 2: Role Player Center
Now, let’s consider a defensive-minded center.
- Inputs: 1800 MP, 800 PTS, 350 FGM, 650 FGA, 10 3PM, 90 FTM, 150 FTA, 150 AST, 700 TRB, 250 ORB, 60 STL, 180 BLK, 150 TOV, 220 PF
- Calculation: The calculator would weigh the high rebound and block numbers against lower scoring.
- Result: This player’s PER might be in the 16.0-19.0 range, signifying a valuable, above-average rotation player. Success in this role could be compared to a high Batting Average for a contact hitter in baseball.
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How to Use This Player Efficiency Rating Calculator
- Gather Player Statistics: Collect all the required stats for the player you want to analyze, from points scored to personal fouls.
- Input the Data: Enter each statistic into its corresponding field in the calculator.
- Calculate: Click the “Calculate PER” button.
- Interpret the Results: The primary result is the simplified PER. A score of 15 is average, above 20 is All-Star level, and above 25 is MVP territory. The intermediate values show the breakdown of positive and negative contributions.
Key Factors That Affect Player Efficiency Rating
- Offensive Production: PER heavily weights scoring efficiency. Players who score a lot of points on few shots will have a high PER.
- Usage Rate: Players who are involved in a high percentage of their team’s plays have more opportunities to accumulate both positive and negative stats.
- Rebounding: Both offensive and defensive rebounds are significant positive contributions.
- Minutes Played: Because PER is a per-minute statistic, players who are effective in limited minutes can still post a high rating.
- Turnovers: High turnover numbers will quickly lower a player’s PER.
- Pace of Play: The full PER formula adjusts for team pace, but even in the simplified version, playing on a fast-paced team can lead to more raw stats.
- Defensive Prowess: While it includes steals and blocks, PER is often criticized for not fully capturing a player’s defensive impact. For a different view on performance, see our Football (Soccer) Player Fitness Calculator.
Frequently Asked Questions (FAQ)
A PER of 15.00 is considered league average. Anything over 20.0 is All-Star level, 25.0 is MVP-candidate level, and 30+ is a historically great season.
PER is not a perfect statistic. It heavily favors offensive players and doesn’t fully account for defensive impact beyond steals and blocks. It can also be inflated by high usage on a bad team.
This calculator uses a simplified formula for ease of use. The official PER is adjusted for team pace and normalized so the league average is always 15. Our calculation provides a strong proxy for on-court efficiency.
Yes, you can input stats from a single game to get a single-game PER. However, PER is more stable and predictive over a larger sample size like a full season.
Assists are a key part of offensive creation. While not as valuable as a made basket by the player themselves, they directly lead to points and are a critical positive contribution. The concept is similar to how a Golf Handicap adjusts for course difficulty.
Partially. It includes steals and blocks, which are positive defensive plays. However, it does not measure things like forced turnovers, good positioning, or shutting down an opposing player, so it is often considered an offense-heavy metric.
Michael Jordan holds the record for the highest career PER in NBA history, with other players like LeBron James also ranking near the top.
A missed shot is a lost scoring opportunity for the team and often results in the other team gaining possession. Therefore, it’s considered a negative outcome in the efficiency calculation.