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Gear Ratio & Speed Calculator
Calculate gear ratios, output speed, and torque for mechanical gear systems and transmissions
Input Gear Teeth
(teeth)
Output Gear Teeth
(teeth)
Input Speed
(rpm)
Input Torque
(N·m)
Gear Efficiency
Spur Gears (98%)
Helical Gears (95%)
Bevel Gears (90%)
Worm Gears (85%)
Calculate