UAV / Propulsion

Motor KV / Prop Sizing Calculator

Size a first-pass motor, battery, and prop combination from weight, thrust target, KV, and prop geometry.

All-up weight g Motor count Target thrust ratio Efficiency g/W Battery cells S Cell voltage Motor KV Loaded RPM % Prop diameter in Prop pitch in Battery capacity mAh ESC headroom %

Voltage -- V Thrust per motor -- g Power per motor -- W Current per motor -- A ESC minimum -- A Total current -- A Loaded RPM -- Pitch speed -- mph Tip speed -- Mach Disk loading -- g/in^2 Min battery C -- C Hover throttle -- %