Endurance & Pace Calculators

Tools for runners, cyclists, swimmers, and athletes to track performance and training.

Calculate your pace for running, cycling, or swimming based on distance and time.

Estimate your aerobic, anaerobic, and other training zones based on heart rate.

Estimate potential finish times for different race distances based on a recent result.

Determine recommended training paces (easy, tempo, interval) based on a race goal.

Get a rough estimate of your VO2 Max based on common fitness tests (e.g., Cooper test).

Estimate calories burned during various physical activities based on duration and intensity.

Calculate required split times for intervals or maintain even pacing during a race.