Cycling Power Zones Calculator (Coggan 7)
All seven classic power zones from your FTP — the table every structured plan references.
Power zones beat HR zones for prescription because watts respond instantly while heart rate lags 30+ seconds and drifts with heat — but HR still earns its seat for aerobic-decoupling checks. The endurance engine is built in Z2's deceptively wide band; the racing edge in Z4–Z5's narrow one.
Formula
For general information only — not medical or training advice. Estimates vary between individuals; consult a qualified professional before changing your exercise or nutrition routine.
All seven classic power zones from your FTP — the table every structured plan references. The Cycling Power Zones Calculator (Coggan 7) is a free, private power zones tool — every result computes instantly in your browser with no sign-up and no data upload.
About Cycling Power Zones Calculator (Coggan 7)
Power zones beat HR zones for prescription because watts respond instantly while heart rate lags 30+ seconds and drifts with heat — but HR still earns its seat for aerobic-decoupling checks. It applies zones as fixed % of FTP (Coggan classic 7-zone model). Use the Cycling Power Zones Calculator (Coggan 7) to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Cycling Power Zones Calculator (Coggan 7)
- 1Enter your details in the Cycling Power Zones Calculator (Coggan 7) input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Cycling Power Zones Calculator (Coggan 7)?
- ✓Instant power zones result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Allen H & Coggan A — Training and Racing with a Power Meter)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Cycling Power Zones Calculator (Coggan 7) work?+
Power zones beat HR zones for prescription because watts respond instantly while heart rate lags 30+ seconds and drifts with heat — but HR still earns its seat for aerobic-decoupling checks. The calculation uses the formula: zones as fixed % of FTP (Coggan classic 7-zone model). Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Cycling Power Zones Calculator (Coggan 7) accurate, and what is it based on?+
The method is traceable to authoritative sources: Allen H & Coggan A — Training and Racing with a Power Meter. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Cycling Power Zones Calculator (Coggan 7) free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general fitness information only, not medical or training advice. Consult a professional before changing your routine.
What can I use the Cycling Power Zones Calculator (Coggan 7) for?+
It's commonly used for power zones, coggan zones, cycling zones ftp. All seven classic power zones from your FTP — the table every structured plan references.
Related Health tools
Adult BMI Calculator (WHO)
Body-mass index for adults with the WHO reference bands shown neutrally, plus the substituted formula step by step.
● LiveBMI Calculator (lb & inches)
US-style BMI from pounds and inches using the ×703 conversion, with CDC adult reference ranges.
● LiveBMI Calculator for Women
BMI with reference context written for women — what the index can and cannot say about female body composition.
● Live