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Cycling Power Zones (Coggan)

Calculate Cycling Power Zones (Coggan) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

Cycling Power Zones (Coggan)

FTP
Z4 (90-105% FTP)
242.5W
Z1: <137,5, Z2: 137,5-187,5, Z3: 187,5-225, Z5+: >262,5Calculate Cycling Power Zones (Coggan) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

More about: Cycling Power Zones (Coggan)

What it calculates

The “Cycling Power Zones (Coggan)” calculator computes Z4 (90-105% FTP) in W from 1 parameter: ftp.

A study aid and exam-prep helper.

Example calculation

With parameters FTP = 250 the result is 242.5 W (Z1: <137,5, Z2: 137,5-187,5, Z3: 187,5-225, Z5+: >262,5).

How to use

  1. Enter the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

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