ENGINEERING TOOL

Hydraulic Motor Torque Calculator

Calculate theoretical and available torque from pressure difference, displacement and mechanical efficiency.

Hydraulic Motor Torque Calculator

FREE ONLINE TOOL

Theoretical torque

238.7324 N·m

Available torque

214.8592 N·m

Formula and assumptions

Tideal = Δp × displacement/(2π); Tavailable = Tideal × ηmech

Use motor inlet minus outlet pressure. Mechanical efficiency applies to torque, not volumetric efficiency. Excludes starting torque and speed-dependent losses.

Technical reference: Parker — Hydraulic cylinder formulas

STEP BY STEP

How to use hydraulic motor torque calculator

  1. Check the input units and assumptions.
  2. Review the result and example.

IN PRACTICE

Example

150 bar × 100 cm³/rev: ideal 238.73 N·m; at 90%, 214.86 N·m.

GOOD TO KNOW

Which model does this calculator use?

Use motor inlet minus outlet pressure. Mechanical efficiency applies to torque, not volumetric efficiency. Excludes starting torque and speed-dependent losses.