Hydraulic Motor Torque Calculator
Estimate the torque and output power of a hydraulic motor from its displacement and operating pressure.
Hydraulic Motor Torque Calculator
Estimate motor torque and output power from displacement and pressure.
cm³/rev
MPa
rpm
%
Output Torque
—N·m
Output Power
—kW
Formula: T(N·m) = V(cm³/rev) × P(MPa) / 2π; P(kW) = T×n / 9549
How It Works
A hydraulic motor converts fluid pressure and flow into rotary motion. Its torque is proportional to the product of displacement and applied pressure. Motor efficiency accounts for internal friction losses.
Use this to verify that a motor meets the torque and speed requirements of your application, such as an excavator swing drive or a winch.