Sports Calculators
Last updated: September 2026
Swimming Pace Calculator
Calculate your swimming pace per 100 meters (or per 100 yards) given total time and distance.
Heart Rate Training Zones Calculator
Calculate your personalised heart rate training zones using the Karvonen heart rate reserve method, which factors in resting heart rate to give zones that actually reflect your cardiovascular fitness.
NFL Passer Rating Calculator
Calculate NFL passer rating using the official four-component formula based on completion percentage, yards per attempt, touchdown rate, and interception rate.
Basketball Shooting Percentage
Calculate basketball shooting percentage by dividing shots made by shots attempted.
Soccer Goals Per Game Ratio
Find a soccer player's goals-per-game ratio by dividing total goals scored by games played.
Volleyball Attack Percentage
Calculate a volleyball player's attack efficiency (hitting percentage) from kills, errors, and total attempts.
Cycling Power Calculator
Calculate the power output required to ride at a given speed on any gradient, accounting for wind resistance, rolling resistance, and rider position.
Vertical Jump Calculator
Measure your vertical jump height using standing and jump reach heights, with adjustments for jump type.
One Rep Max Calculator
Predict your one-rep max (1RM) β the heaviest weight you could lift for a single perfect rep β from a recent set you actually performed.