Test consistently
A repeatable protocol under similar conditions makes changes interpretable. A different trainer, cooling setup or pacing strategy can move the result even when fitness has not changed.
FTP & power training
FTP, Power Zones & Cycling Interval Training
Power is useful when it improves decisions. This collection moves from a defensible FTP estimate to practical zones, well-paced intervals and honest interpretation—without treating one number as your identity or fitness ceiling.
Use ranges, not a cliff edge
Zone boundaries organize training; physiology does not change abruptly at a single watt. Combine power with breathing, RPE and the purpose of the session.
Progress repeatable work
Add useful time at the target intensity before chasing higher power. Stable pacing and completion quality matter more than winning the first interval.
Start with the reasoning
In-depth guides
Read in order or go directly to the decision you need to make.
How to Increase FTP in Cycling: Tests, Zones and Training
Build a higher, more durable FTP with progressive training and repeatable testing.
Read guideZone 2 Cycling Training: Intensity, Duration and Progression
Use power, heart rate, breathing and RPE together to keep Zone 2 useful and repeatable.
Read guideHow to Increase Cycling Power: Interval Training
Increase cycling power with progressive intervals without turning every ride into a hard day.
Read guideCycling Training Without a Power Meter
Train effectively with time, perceived effort, and a clear weekly structure.
Read guideApply it
Free calculators
Use transparent tools after you understand what each result can—and cannot—tell you.
FTP & power zones
Estimate cycling FTP from a 20-minute test, calculate watts per kilogram and find seven practical power training zones with transparent formulas.
Open calculatorCycling load points
Calculate power-based cycling load points from duration, weighted power and FTP, then understand the assumptions behind the result.
Open calculator