Motor Displacement Calculator

Calculate required motor displacement to meet torque and speed requirements.

Input Parameters

Results

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Required Displacement
in³/rev
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Displacement
cc/rev
--
Flow Required
GPM
--
Output Power
HP
Note: Select the next larger standard displacement size. Higher displacement = lower speed for same flow.

Reference

Torque_in = T_req × 12 [lb·in] Displacement = (T_in × 2π) / (P × η_mech) Flow = (Disp × RPM) / (231 × η_vol) Power = (Torque × RPM) / 5252