Methodology
How this calculator works
Power-to-Weight Ratio Methodology
W/kg bands are based on the widely-used Coggan/Allen power profiling model. Male and female bands are presented separately because physiological differences in sustainable power are well-documented.
- Use FTP-based W/kg, not peak sprint power, as the benchmark reference.
- Present gender-specific bands since physiological thresholds differ.
- Frame triathlon context around sustainable race effort, not short-duration peaks.
FAQ
Frequently asked questions
What is a good W/kg for triathlon?
Most competitive age-group triathletes sit between 3.0 and 4.0 W/kg at FTP. Elite triathletes can sustain 4.5+ W/kg, but pacing discipline matters more than peak power in long-course racing.
Should I focus on increasing power or adjusting body composition to improve W/kg?
Raising FTP through structured training is the most direct and sustainable approach. If body composition is a factor, consider working with a qualified nutrition professional for gradual, performance-safe adjustments.
Does W/kg matter for flat triathlon courses?
Less than on hilly courses, but it still indicates cycling fitness. On flat courses, aerodynamics (CdA) matters more than weight, but W/kg remains a useful benchmark.
Evidence
References
This calculator provides estimates based on published exercise science research. Individual responses vary. These outputs are not a substitute for coaching, medical clearance, or your own experience. Always listen to your body and consult a qualified professional before making significant changes to your training.
Related calculators
Keep the next decision close.
FTP Calculator
Bike
Estimate functional threshold power and turn it into cleaner bike zones, Sweet Spot targets, and triathlon pacing anchors.
Bike TSS Calculator
Bike
Calculate bike Training Stress Score, Intensity Factor, and target ride stress with cleaner load guidance for self-coached triathletes.
Gear Ratio & Cadence Calculator
Bike
Calculate gear ratio and speed at any cadence, compare gearing options, and get triathlon-specific cadence and gear-selection advice.