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Cycling Power Calculator - FTP & Watts per Kg
Free cycling power calculator. Calculate your watts per kg, FTP zones, and see your cycling performance level.
Cycling Power Calculator
Calculate FTP zones and watts/kg
Power Analysis
Enter your values to see results
and click the "Calculate" button
Cycling Power Calculator
Calculate your watts per kg and training zones. FTP (Functional Threshold Power) is the power you can sustain for ~1 hour.
Power-to-Weight
W/kg = FTP (watts) / Body Weight (kg)
Recreational: 2-2.5 w/kg. Amateur: 3-3.5 w/kg. Cat 3: 3.5-4 w/kg. Cat 1/2: 4-4.5 w/kg. Pro: 5+ w/kg.
Frequently Asked Questions
How do I find my FTP?
20-minute test: warm up, ride 20 min as hard as sustainable, FTP = average power × 0.95. Or use ramp test on trainer.
What's a good watts/kg?
Depends on goals. 3 w/kg is solid recreational. 4 w/kg is competitive amateur. 5+ w/kg is pro level.
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