Gear & Speed Calculator
Enter sprocket sizes and motor data, then hit Calculate.
Direct RPM
Voltage × Kv
Motor RPM (no-load or target)
Motor Kv (RPM/V)
Series Cell Count
Battery Type (fully-charged voltage)
Lithium Ion
LiFePO4
Lead Acid
NiMH
Motor Sprocket (teeth)
Wheel Sprocket (teeth)
Tire Diameter
Units
in
mm
Throttle (%)
Calculate
* Values are based on fully charged battery voltage.
Results
Enter values and press Calculate to see results.