Cycling Wattage Calculator

Estimate power output from speed and rider data

Note: Power (watts) ≈ (speed³ × 0.02 + grade × weight × 9.81) simplified. Flat road estimate.

Ride Data

Rider+Bike Weight (kg)

Speed (km/h)

Grade (%)

⚠️ For educational and training purposes only. Consult a coach, physician, or certified trainer before making training or health decisions.

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