Calculators

Calculates training zones based on maximum or resting heart rate, specific to cycling.

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

This calculator determines the gear ratio of a bicycle based on the chainring size and the cog size on the cassette. It helps cyclists understand the mechanical advantage and the effective distance traveled per pedal revolution.

Calculates bike speed based on cadence (pedal RPM), gear ratio, and wheel size.

Calculates cycling pace or speed based on distance and time.

Estimates the average length of a person's stride while walking or running.

Estimates potential improvement in race time based on changes in training or fitness.

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

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

Calculates appropriate training paces for different types of runs based on a recent race time and distance.