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Total Dynamic Head
Back to Conversion Formulas
"Head" is a word engineers use for pressure. This calculator determines the pressure (head) required just after the pump, and the pressure (head) that the pump must generate or add. The required pressure just after the pump (total dynamic head) includes pre-existing pressure of water entering the pump, pressure needed to overcome elevation differences (sometimes pressure is added if flowing downhill), and the pressure losses due to friction in the pipes in order to produce the required pressure at the emitters, or sprinklers.
Determine the pressure (head) required just after the pump, and the pressure (head) that the pump must generate or add.
(Based on water properties)
Elevation Change (positive = pumping upward, negative = pumping downward):
ft
m
Pressure Required in the System:
ft of water
m of water
bars
milli bars
kPa
atm
in of Mercury
psi
Friction Head Loss in the Pipeline:
ft of water
m of water
bars
milli bars
kPa
atm
in of Mercury
psi
Inlet Pressure at the Pump:
ft of water
m of water
bars
kPa
atm
in of Mercury
psi
Total Dynamic Head (Pressure) Needed:
ft of water
m of water
bars
kPa
atm
in of Mercury
psi
Total Dynamic Head (Pressure) the Pump Must Generate (Use this to specify your pump.):
ft of water
m of water
bars
kPa
atm
in of Mercury
psi
Other Pump Conversion Formulas
Pressure Conversions
Flow Conversions
Temperature Convertions
Vacuum Conversions
Speed Change (Affinity Laws)
Weight Converter
Length Converter
Viscosity Conversion
Volume Conversion and Calculations of Cylinders, Squares, and Rectangles
Pipe Velocity & Minimum Pipe Diameter
Required Pump Horsepower
Net Positive Suction Head Available (NPSHA)
Total Dynamic Head
Horsepower Conversion
Density to Specific Gravity