• Pump Calculator
  • Motor Calculator
  • Cylinder Calculator
  • Conversion Calculator
  • Orifice Calculator

Gear Pump Size Calculator

Outside Root Diameter (mm)
Inner root diameter (mm)
Height (mm)
Displacement
{{ DisplacementCC ().toFixed(4)}}cc
{{ DisplacementCU().toFixed(4) }} cu in

Power to Drive a Pump

Pressure
Pump displacemen
Input speed
Pump efficiency (%)
Power
Flow
{{ Power ().toFixed(4)}}Kw
{{ Flow ().toFixed(4)}}L/min

Pump Efficiency Tool

Pump flow @50Bar (l/min)
Pump flow @300Bar (l/min)
Percent of Flow Loss
Pump Efficiency
{{ PercentFlowLoss ().toFixed(4)}}%
{{ PumpEfficiency ().toFixed(4)}}%

Motor Torque & Power

Motor Displacement (cm³/rev)
Input Flow (L/min)
Motor Efficiency (%)
Pressure Drop Δp (bar)
Results
Speed = {{ Speed().toFixed(4) }} rpm
Power = {{ Power().toFixed(4) }} Kw
Torque = {{ Torque().toFixed(4) }} rpm

Gear Box Winch*

*Please complete the "Motor Torque & Power" section as some of the values for this are use the results to calculate.

Ratio - :1
Bare drum Ø =
Full Drum Ø =
Results
GearSpeed {{ GearSpeed().toFixed(4) }} rpm GearTorque {{ GearTorque().toFixed(4) }} Nm GearBarePull {{ GearBarePull().toFixed(4) }} Tonne GearFullPull {{ GearFullPull().toFixed(4) }} Tonne GearBareSpeed {{ GearBareSpeed().toFixed(4) }} M/min GearFullSpeed {{ GearFullSpeed().toFixed(4) }} M/min

Cylinder Force & Speed

Bore Ø (mm)
Rod Ø (mm))
Stroke (mm)
Pressure Δp (Bar)
Flow (Lpm)
Mechanical Efficiency (%)
Force Extend (kN)
Force Retact (kN)
Force Extend (Tonne)
Force Retract (Tonne)
Extend Volume (Litre)
Retract Volume (Litre)
{{ ForceExtendKN().toFixed(4) }} kN
{{ ForceRetractKN().toFixed(4) }} kN
{{ ForceExtendTonne().toFixed(4) }} Tonne
{{ ForceRetractTonne().toFixed(4) }} Tonne
{{ ExtendVolume().toFixed(4) }} Litre
{{ RetractVolume().toFixed(4) }} Litre
Stroke Time Ext (sec)
Stroke Time Ret (sec)
Rod Speed Ext (m/sec)
Rod Speed Ret (m/sec)
Exhaust Flow Ext (Lpm)
Exhaust Flow Ret (Lpm)
{{ StrokeTimeExt().toFixed(4) }} sec
{{ StrokeTimeRet().toFixed(4) }}
{{ RodSpeedExt().toFixed(4) }} m/sec
{{ RodSpeedRet().toFixed(4) }} m/sec
{{ ExhaustFlowExt().toFixed(4) }} m/sec
{{ ExhaustFlowRet().toFixed(4) }} m/sec

Pressure Conversion

PSI Result
{{ CalculatePSIBar().toFixed(4) }} Bar
{{ CalculatePSIKG().toFixed(4) }} Kg/cm2
{{ CalculatePSIKPA().toFixed(4) }} Kpa
Bar Result
{{ CalculateBarPSI().toFixed(4) }} PSI
{{ CalculateBarKG().toFixed(4) }} Kg/cm2
{{ CalculateBarKPA().toFixed(4) }} Kpa
Kg/cm2 Result
{{ CalculateKGPSI().toFixed(4) }} PSI
{{ CalculateKGBar().toFixed(4) }} Bar
{{ CalculateKGKPA().toFixed(4) }} Kpa
Kpa Result
{{ CalculateKPAPSI().toFixed(4) }} PSI
{{ CalculateKPABar().toFixed(4) }} Bar
{{ CalculateKPAKG().toFixed(4) }} Kg/cm2

Weight Conversion

Kg l/b
{{ CalculatePound().toFixed(4) }} l/b
l/b Kg
{{ CalculateKg().toFixed(4) }} Kg

Torque Conversion

in/lb Nm
{{ CalculateNM().toFixed(4) }} Nm
Nm in/lb
{{ CalculateLb().toFixed(4) }} in/lb

Power Conversion

HP kW
{{ CalculateKW().toFixed(4) }} kW
KW HP
{{ CalculateHP().toFixed(4) }} HP

Calculate Flow from Orifices

Pressure Drop ∆p (Bar)
Orifice Ø (mm)
Density - approx 0.9 (g/cm³)
Flow coefficient - approx 0.78 (ρ)
Flow (Lpm)
{{ FlowResult().toFixed(4) }} LPM