Pump Formulas

Here are the most used hydraulic pump formulas, including pump outlet flow, input power, hydraulic pump efficiency, and pump life. If you need more information about hydraulic pumps or if you need hydraulic pump repairs, please contact us.

Hydraulic Pump Formulas

Pump Formulas For: Word Formula Letter Formula
Pump Outlet Flow
In Gallons/Minute
Flow =
pump formulas: flow formula
Q = pump flow formula
Pump Input Power
In Horsepower Required
Horsepower Input =
horsepower input formula
horsepower input or horsepower input
Pump Efficiency
Overall in Percent
Overall Efficiency = pump overall efficiency formula X 100
Overall Efficiency = Volumetric Eff. x Mechanical Eff.
overall efficiency x  100
EffQV =
Pump Efficiency
Overall in Percent
Volumetric Efficiency =
volumetric efficiency formula x 100
EffVOL =
volumetric efficiency x 100
Pump Efficiency
Mechanical in Percent
Mechanical Efficiency =
mechanical efficiency formula x 100
EffMEC =
mechanical efficiency x 100
Pump Life
B10 Bearing Life
B10 Hours of Bearing Life =
Rated Life Hours x
pump life formula xpump life formula
B10  x
pump life xpump life