Tools:
Gear Ratio Calculator Model Scaler Thumbnail Helper Wheels Chart Unit Converter
Calculator
Click the images to select the respective gears. Start with the first pair and add more pairs as needed:
8
12
12
14
16
16
20
20
20
24
24
24
16
24
28
28
36
40
56
56
168
1
8
12
12
14
16
16
20
20
20
24
24
24
16
24
28
28
36
40
56
56
168


Select your drive motor to see the theoretical output speed in RPM (Rotations Per Minute):
Gear coupler
The red dot marks the position of your driver gear's axle. Select the position of your follower gear's axle to see the available gear combinations:

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