Cycling Cadence Calculator
Calculate your cycling cadence (RPM) from speed and gear ratio, or find the speed for a given cadence and gear.
mph
teeth
teeth
m
Cadence
78 RPM
Gear Ratio2.94
Development6.18 m
Speed28.97 km/h
Cadence vs Speed
How Cycling Cadence Is Calculated
Formula
Cadence (RPM) = Speed (m/min) / Development (m/rev)
Where Development = Gear Ratio x Wheel Circumference
Optimal Cadence
Most cyclists are most efficient between 80-100 RPM. Professional road cyclists typically ride at 85-95 RPM.
Example Calculation
Riding at 18 mph with 50/17 gearing and 2.1 m wheel circumference.
- 01Speed in m/min = 18 * 1609.34 / 60 = 482.8 m/min
- 02Gear ratio = 50 / 17 = 2.94
- 03Development = 2.94 * 2.1 = 6.18 m/rev
- 04Cadence = 482.8 / 6.18 = 78 RPM
Frequently Asked Questions
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