Premium tools for athletes

Calculators and generators to optimize your running, trail and triathlon training.

VMA Pace Calculator

Calculate your training paces and estimated times based on your VMA.

Determine your personalized heart rate zones for optimal training.

Estimate your caloric expenditure for various sports activities.

Predict your times for XS, S, M, L, XL and Ironman formats.

Estimate your trail running time based on profile and distance.

Create a personalized training plan generated by artificial intelligence.

Real-time results with every parameter change.

Formulas validated by scientific studies and sports experts.

Download your results as PDF for offline viewing.