Power-to-Weight (W/kg) Calculator illustration

Power-to-Weight (W/kg) Calculator

Divides your FTP by body weight to get the W/kg number that decides who gets dropped on climbs, maps it to an approximate rider level, and prints all seven Coggan power zones in watts for your FTP.

Notes

  • FTP is the highest power you can hold for roughly an hour; a 20-minute test times 0.95 is the common field estimate.
  • Level bands are rough guides for flat-terrain racing fitness, not selection criteria.
  • Educational estimate for sport and training purposes, not professional coaching or medical advice.