Engineering Tool

Hydraulic Cylinder Force & Pressure

Calculate push force, pull force, and pressure in tonnes/kN.

Last reviewed by the myCalculator Editorial Team

Input Parameters

Calculation Results

Extension Force (Push)
10.25Tonnes
Retraction Force (Pull)
7.69Tonnes
Push Force (Kn)
100.5kN
Piston Area
50.27cm²

Formula & How Hydraulic Cylinder Force & Pressure Works

Mathematical Formula
Force = Pressure × Piston Area

A hydraulic cylinder's force is the pressure multiplied by the piston area: F = P × A. A cylinder with a 100 mm bore has a piston area of π × 0.05² = 0.007854 m². At 150 bar (15 MPa) it produces 15,000,000 × 0.007854 = about 117.8 kN. On the retraction stroke the rod reduces the area the oil acts on, so the force is lower than on extension. Speed depends on the flow rate divided by the area. Include the working-pressure limit of the hoses, fittings and the pump, and a safety factor, when you size a system. Hydraulic systems store a lot of energy, so work on them only if you are trained.

How to Calculate Hydraulic Cylinder Force & Pressure (Step-by-Step)
  1. Enter Cylinder Bore Diameter (mm): Input your target parameter value.
  2. Enter Rod Diameter (mm): Input your target parameter value.
  3. Enter Operating Pressure (bar): Input your target parameter value.
  4. Apply Formula: Calculate using Force = Pressure × Piston Area.
  5. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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APA 7th Edition

MyCalculator.com.au. (2026). Hydraulic Cylinder Force & Pressure. Retrieved October 24, 2026, from https://www.mycalculator.com.au/calculators/engineering/hydraulic

Harvard (Standard)

MyCalculator.com.au. (2026) 'Hydraulic Cylinder Force & Pressure'. Available at: https://www.mycalculator.com.au/calculators/engineering/hydraulic (Accessed: 24 October 2026).

Frequently Asked Questions (FAQs)

Why is retract force weaker than extend force?

The cylinder rod occupies area on the return side, reducing effective fluid push area.

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