Basketball
Game score, shooting efficiency, points per game, vertical jump, and dunk feasibility based on your height and reach: basketball performance quantified using the same advanced-stats formulas broadcasters reference during games.
Calculators & Tools
Dunk Calculator
The Dunk Calculator estimates whether you can dunk a basketball based on your height, standing reach, and vertical jump height. It calculates the minimum reach needed to touch the rim (10 feet) and to clear a dunk (approximately 6 inches above the rim), then compares that against your measured vertical leap. Use it to set vertical jump training targets and track progress toward dunking ability.
Free Throw Calculator
The Free Throw Calculator works out free throw percentage (FT%) from makes and attempts, calculates the probability of hitting a streak of consecutive free throws, and estimates expected makes per 10 attempts. It also compares your FT% against NBA tier benchmarks from Elite (90%+) to Poor (below 60%). Use it to figure out whether your free throw shooting is where it needs to be relative to your level of play.
Basketball Shooting Calculator
The Basketball Shooting Calculator computes shooting efficiency across four metrics: field goal percentage (FG%), three-point percentage (3P%), effective field goal percentage (eFG%), and true shooting percentage (TS%). It uses your made and attempted counts for field goals, three-pointers, and free throws to work out each metric instantly. Use it to figure out which shooting metric best reflects your offensive value and compare your output against NBA position averages.
Points Per Game Calculator
The Points Per Game (PPG) Calculator works out a player's scoring average from total points and games played, then projects the total points that rate would produce over an 82-game NBA season or a 30-game college season. It also compares your PPG against NBA all-time single-season scoring leaders so you can figure out where your rate sits in historical context. Use it to track personal scoring trends, set season targets, or compare players across different numbers of games.
Vertical Jump Calculator
The Vertical Jump Calculator works out jump height from the difference between a player's standing reach and their maximum jump reach, then interprets the result against five performance rating bands, calculates hang time using projectile motion physics, and estimates dunking potential for standard 10-foot rims. It supports both inches and centimetres. Use it to set training targets, track jump improvement over a programme, or figure out how close you are to dunking.
Game Score Calculator
The Game Score Calculator works out John Hollinger's single-game basketball performance rating from a full box score: points, field goals, free throws, rebounds, steals, assists, blocks, fouls, and turnovers. It supports a full stat-by-stat breakdown showing exactly how much each category added or subtracted from the final score. Use it to rate a single game's performance at a glance or compare it against historic single-game outputs.