PORT CALCULATOR
Cycling Power Zones
A precise tool.
What is the Cycling Power Zones & How does it work?
Cycling power zones are a way to translate a rider’s Functional Threshold Power (FTP) into actionable training intensities. By expressing effort as a percentage of FTP, athletes can target specific physiological adaptations, from aerobic base work to high‑intensity anaerobic efforts. The most common zone model divides effort into seven bands, each linked to a range of %FTP. Zone 1 (<55 % FTP) supports recovery, while Zones 2–3 (55‑90 % FTP) build endurance and stamina. Zones 4–5 (90‑120 % FTP) develop threshold power, and Zones 6–7 (>120 % FTP) train sprint and VO₂max capacity. Accurately determining your FTP—typically the highest average power you can sustain for one hour—allows the calculator to generate personalized wattage ranges. These ranges can be used in training plans, interval sessions, and race pacing strategies.
P = text{FTP} times frac{%}{100}
P = power output (W)
Parameters
Result
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Frequently Asked Questions
What is Functional Threshold Power (FTP) in cycling?
FTP is the highest average power you can sustain for one hour of continuous riding.
How many power zones does this calculator divide effort into?
The calculator divides effort into seven power zones based on a percentage of FTP.
What is Zone 1 in cycling power zones?
Zone 1 includes efforts at 50-70% FTP, focusing on endurance and base training.
How do I determine my FTP for this calculator?
FTP can be estimated through a one-hour time trial or by using power meter data from your rides.
Can this calculator help with sprint training?
Yes, Zone 1 (120% FTP) is specifically designed for sprint and VO₂max capacity training.
What are the benefits of using cycling power zones in training?
Using power zones helps athletes target specific physiological adaptations and improve overall performance.
Is this calculator suitable for all cyclists?
Yes, it’s suitable for both recreational and professional cyclists looking to optimize their training.
Results are for informational purposes only and do not constitute professional advice.