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Cycling power zones calculator

Change the values, then calculate. This does not change any account settings.

Seven power zones, displayed in whole watts.

Your zones at 250 W

ZoneIntensityW
Z1Recovery0–137
Z2Endurance138–187
Z3Tempo188–225
Z4Threshold226–262
Z5VO₂max263–300
Z6Anaerobic capacity301–375
Z7Neuromuscular power376+

Continuous whole-watt ranges: each begins after the previous one. Zone 7 is indicative; FTP alone does not determine neuromuscular efforts.

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