Pump Flow or Displacement:
GPM(Flow)
=
=
X
231
Pump Input Horsepower:
HP(Power)
=
=
X
1714X
Torque1:
Torque
=
=
X
6.28(2π)
Torque2:
Torque
=
=
X63025
Hydraulic Calculations, Formulas, Unit Conversions & More
Instructions: Click on the red arrow to reveal or hide a group of formulas or hydraulic calculations. Some fields include notes or additional information which will appear if you place your mouse pointer on the field. Leave only one field open in each formula and click the “Calculate” button for the result of that field.
Cylinder Formulas
Cylinder Piston Area – Blind End(Extension):
Area, in2
=
=
2X0.7854(π/4)
Cylinder Piston Area – Rod End(Retraction):
Area, in2
=
=
2–2
Cylinder Force:
Pounds of Force
=
=
X
Cylinder Flow Rate (and Velocity):
GPM (Flow)
=
=
XX60
Cylinder Volume:
Gal (Volume)
=
=
X
231
Oil Velocity & Pressure Loss Formulas
Pressure Loss Per Foot of Pipe (Warning: Laminar Flow Only!):
Pressure Loss (PSI/ft)
=
=
X
18,300X
Velocity of Oil Flow in a Pipe:
Velocity (ft/sec)
=
=
X0.3208
X0.7854
Disclaimer: While fluid power formulas are useful tools for specifying system components and capabilities; other factors such as mechanical efficiencies, fluid dynamics and material limitations must also be considered. Bertrem Products has taken great care to verify that the conversions and calculations on this page are correct. However, Bertrem Products provides no warranties, nor does it assume any legal liability or responsibility for the accuracy, completeness or usefulness of any of the information supplied. If you have any questions, comments or feedback about the information on this page or our web site, please contact sales@bertrem.com.