Calculators

Helps formulate homemade sports drinks with appropriate carbohydrate and electrolyte concentrations.

Calculates the NFL or NCAA passer rating based on completions, attempts, yards, touchdowns, and interceptions.

Analyzes gear ratios on a bicycle based on chainrings and cassette cogs.

Helps structure training plans or calculate paces across the swim, bike, and run disciplines.

Estimates potential race times for different distances based on a recent performance.

Estimates calories burned while running, based on distance/time, pace, and weight.

Helps estimate an appropriate bicycle frame size based on body measurements.

Calculates target split times for different segments of a race or run based on overall goal time.

Calculates the save percentage of a goaltender, which is the percentage of shots faced that were successfully saved.

Calculates power, pace, or calories based on performance on a rowing machine (ergometer).