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Free calculators for runners
The same models that build Paceo plans, free to use. No account, no ads.
VO2max speed (MAS)
Your maximal aerobic speed from a 6 or 12-minute test or a race, plus your training paces.
Pace calculator
Pace, speed, finish time: convert in one click for your next race.
Heart rate zones
Your 5 heart rate zones from your max heart rate, with or without resting heart rate.
Race time predictor
Your likely 5K, 10K, half and marathon times from a recent race.
Turn these numbers into a training plan.
Paceo builds your road, trail or ultra plan from your VO2max pace and your Garmin, Coros, Suunto or Strava workouts, then adjusts it every week.
Create my free plan