Health

Free Cycling Power/Speed Calculator

Estimate cycling speed from power output.

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Inputs

Result

Estimated speed

34.5 km/h

Speed (mph)21.5 mph

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Short answer

Estimate cycling speed from power output.

What is the Cycling Power/Speed Calculator?

Estimate cycling speed from power output.

How does the Cycling Power/Speed Calculator work?

Enter the inputs above and read the result.

Formula

P = v·(m·g·(sinθ + Crr·cosθ) + ½·ρ·CdA·v²)

Variables

  • CdAAerodynamic drag area (assumed 0.3)
  • CrrRolling resistance (assumed 0.005)

Explanation

Speed is solved numerically from the power balance between rider output and resistive forces.

Examples

Applications

    Advantages

      Limitations

      • This tool is for general education only and is not medical advice. Consult a qualified healthcare professional for diagnosis or treatment decisions.

      Common mistakes

        Tips

          Related concepts

          The Cycling Power/Speed Calculator sits inside the Health Calculators hub, in the fitness & training cluster. Intensity, capacity and performance prediction. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.

          training zoneaerobic capacityprogressive overloadMET valuesplit time

          Practical use cases and industry applications

          Understanding Cycling Power/Speed

          Estimate cycling speed from power output. Within health calculators, cycling power/speed belongs to the fitness & training cluster, where it shares terminology and assumptions with closely related tools.

          Learning how cycling power/speed is calculated

          Speed is solved numerically from the power balance between rider output and resistive forces. Working through the variables one at a time — CdA, Crr — makes the result reproducible by hand and easier to sanity-check.

          Using cycling power/speed to make a decision

          Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.

          How cycling power/speed compares with related measures

          training zone, aerobic capacity, progressive overload, MET value all describe adjacent aspects of fitness & training. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.

          Frequently asked questions

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