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Beginner Help

Servo Size Explained

by Motion RC February 18 2018

RC servos are categorized into six standard sizes shown in the table below. To help you select the correct servo for your project we have included an approximate weight and size specifications for each servo category. Please note, servos can vary from these guidelines, so always check the product page for detailed specifications.

Servo Size	Weight Range	Typical Servo Width	Typical Servo Length	Typical Applications
Nano	Less than 8g	7.5mm	18.5mm	Micro airplanes, indoor airplanes, and micro helicopters
Sub-Micro	8g to 16g	11.5mm	24mm	1400mm wingspan and smaller airplanes, small EDF jets, and 200 to 450 size helicopters
Micro	17g to 26g	13mm	29mm	1400 to 2000mm wingspan airplanes, medium and large EDF jets, and 500 sizes helicopters
Mini	27g to 39g	17mm	32.5mm	600 size helicopters
Standard	40g to 79g	20mm	38mm	2000mm wingspan and larger airplanes, turbine powered jets, and 700 to 800 size helicopters
Large	80g and Larger	> 20mm	> 38mm	Giant scale airplanes and jets

Servo Measurement Key

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