Cyclanto

Keep every ride smooth, from chain to tyre.

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Cycling cadence and speed calculator

Find your theoretical cycling speed from your gearing, wheel circumference and cadence.

Enter your own wheel circumference in millimetres, measured by you or read from the tyre sidewall if explicitly provided. A tyre size or diameter is not a circumference.

Enter your values, then calculate.

Method and limitations

Development in metres = circumference in mm ÷ 1000 × chainring teeth ÷ sprocket teeth. Speed in km/h = cadence in rpm × development × 60 ÷ 1000. Speed in mph = km/h ÷ 1.609344. This assumes steady pedalling without slip; it does not predict the effort required.

Sources

No external reference is documented for this calculation; its method and limitations are described above.