Free calculators and converters to plan your training, predict your performance and track your progress.
Calculate your pace (min/km) from a distance and a time. Project your other distances.
Convert between min/km, km/h, min/mile and mph in one click.
Predict your time at a target distance from a known performance (Riegel formula).
Estimate your VO2 max from a distance and time. Daniels/VDOT method.
Create a printable pace band with per-km splits adjusted for elevation. Pick your event or trail.
Calculate calories burned running from your weight, distance and speed.
Draw your route on an interactive Québec map, calculate distance and elevation, and export the GPX file to your watch.
Open route planner