pacefueler.com

1. Your Recent Performance Data

Distance (km)

Time (minutes)

2. Runner Physiology & Training Volume

Age (years)

Gender

Body Weight (kg)

Weekly Training Volume (km/week)

3. Environmental & Course Conditions (Optional)

Course Grade / Elevation

Ambient Temperature

Main Running Trouble Area

4. Heart Rate Data (Optional)

Max Heart Rate (bpm)

Resting Heart Rate (bpm)

Calculating your running score...

🏃 Recommended Running Tips Ready

Training Guides & VO₂ Max Resources

Go deeper on the science behind your score, how it compares to other runners, and how to actually raise it.

A plain-English walkthrough of the VDOT formula and how a single race result becomes a VO₂ max estimate and full set of training paces.

See how your VO₂ max compares to other runners your age and gender, using standard fitness classification bands.

View the chart →

What Zone 2 training really is, how to find your Zone 2 heart rate, and why running slower raises your VO₂ max.