Speed alone does not explain how hard a ride is. Grade, wind, rider weight, bike weight, riding position, and tire drag all change the watts needed to hold the same pace.
Icebike calculator
Cycling Power Calculator
Estimate riding watts from speed, grade, weight, wind, position, and tire type.
How to use this calculator
Enter realistic values from your bike, route, riding conditions, or recent test. Treat the result as a planning estimate, then check it against manufacturer limits, your own ride data, and a short test ride when setup or safety is involved.
Related Icebike tools and guides
- Cycling FTP calculator
- Average bike speed
- Speed, distance, and time calculator
- Bicycle gear speed calculator
This calculator is for planning and comparison. It does not replace a mechanic inspection, a manufacturer setup chart, medical advice, or local road-safety judgment.
