Is this Cycling Wattage Calculator free to use?

Yes, Cycling Wattage Calculator is 100% free to use online with no installation or account required.

How do I use the Cycling Wattage Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Cycling Wattage Calculator — Free Online Tool

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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.