Bike Cadence Calculator

Your details

Choose which value you already know and the calculator will solve for the other.
Select a standard wheel size or choose Custom to enter the outer diameter directly.
The inflated cross-section width of your tire in millimetres. Common road values: 23-28 mm; gravel 38-50 mm; MTB 50-80 mm.
mm
Number of teeth on your front chainring. Road doubles are commonly 50/34 or 52/36.
teeth
Number of teeth on the rear sprocket you are currently using.
teeth
Enter your current or target speed in the unit selected above.
km/h
CadenceModerate cadence
75.4RPM

Pedal revolutions per minute required at the given speed

Speed30km/h
Speed18.64mph
Gear ratio2.94
Rollout (gear development)6.63m
Cadence zoneModerate (70-79 RPM) - common recreational
75.4 RPM
Grinding<60Moderate60-80Optimal80-100High100-120Extreme120+

At 30.0 km/h in a 50/17 gear, you pedal at 75 RPM.

  • Your gear ratio is 2.94: for every pedal revolution, the rear wheel turns 2.94 times, covering 6.63 m.
  • A cadence of 60-79 RPM is common for casual and mountain biking but is less aerobically efficient than a higher tempo on flat roads.
  • At 30.0 km/h in this gear, your cadence is 75 RPM. Changing to a 1-tooth larger cog would drop cadence by roughly 4 RPM at the same speed.

Next stepTrack your average cadence over a few rides; most cyclists benefit from gradually raising their natural cadence by 5-10 RPM over several weeks.

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