Explore our collection of sports calculators organized by subcategory.
Calculate estimated marathon time from shorter race times using Riegel's formula. Enter a race distance and time to get a predicted marathon finish time and pace.
Calculate 5K race time predictions using your current pace and training distance (Riegel formula).
Calculate 10K race time predictions.
Calculate cycling power output from force and velocity (Power = Force × Velocity).
Calculate cycling speed from cadence and gear ratio.
Calculate bike gear ratios and gear inches.
Calculate calories burned during cycling.
Calculate training volume for strength training.
Calculate optimal rest periods between sets based on exercise type and intensity (% of 1RM).
Calculate progressive overload increments.
Calculate baseball statistics like batting average, hits per 100 at-bats, and projected hits over a 600 AB season.
Calculate basketball statistics such as field goal percentage from field goals made and attempted.
Calculate football statistics (completion percentage and completion decimal) based on completions and pass attempts.
Calculate golf handicap index.
Calculate tennis serve speed from distance and time.
Calculate swimming pace per 100m and generate split times for 50m segments. Enter distance (meters) and total time (seconds) to auto-calculate pace and splits.