Hidroteknik Calculators

Hydraulic & Pneumatic Calculation Guides

Each guide gives the formula, units, a worked example and the related free calculator.

Hydraulic Cylinder Force

How to calculate hydraulic cylinder push and pull force. F = P × A formula, piston and annular area, unit table and a worked example.

How to calculate hydraulic pump flow rate. Q = Vg × n / 1000 formula, volumetric efficiency, units and a worked example.

How to calculate hydraulic motor power and torque. P = p × Q / 600 and T = Vg × Δp / 62.83 formulas, units and a worked example.

How to size a hydraulic accumulator. Total volume via Boyle's law, nitrogen pre-charge pressure, units and a worked example.

How to calculate pipe diameter and flow velocity for hydraulic lines. Formula, recommended velocity table, units and a worked example.

How to calculate pneumatic cylinder air consumption. Compression ratio, free air flow (Nl/min), units and a worked example.

How to calculate the buckling load of a shaft/column under compression. Euler formula, end-fixity factors, units and a worked example.

How to calculate the weight per metre of pipe and solid rod. Formula, steel density, units and a worked example.

How to identify a thread's size and pitch. Measuring major diameter and pitch, telling metric/BSP/NPT apart, and a practical example.

Convert pressure between bar, psi, MPa, kPa and kgf/cm². Conversion factor table and worked examples.

How to select a gear pump for your needs. Required displacement formula, speed and pressure class, and a worked example.

How to size a hydraulic power unit (power pack). Motor power, pump displacement and tank volume formulas with a worked example.