Triathlon Calculators

Master your multi-sport performance with the web’s most precise triathlon engines. From transition-tuned pace calculators to aerodynamic bike fit tools and science-based nutrition planners, we provide the data you need to crush your next PR.

Core Triathlon Time & Pace Engine

Bike Fit & Geometry Engine

Swim Pace & Time Engine

Distance-Specific Race Mode

Heart Rate & Training Zones

Nutrition, Carb & Hydration

Ready for Race Day?

Use these tools in combination to build a comprehensive race strategy, from the first stroke in the water to the final step of the run.