Pump Head Calculator
Find the exact pump head quickly with our pump head calculator. This guide helps you calculate total dynamic head with simple steps. Use it to select the right pump and improve system efficiency.
Pump Head Calculator
How to Use Pump Head Calculator
Follow these simple steps to use a pump head calculator:
- Step 1: Enter Flow Rate
Input the required flow rate (GPM, LPM, or m³/h). - Step 2: Add Static Head
Enter the vertical distance between the source and discharge point. - Step 3: Include Pipe Length
Add the total pipe length in the system. - Step 4: Input Pipe Diameter
Provide pipe size to estimate friction loss accurately. - Step 5: Add Fittings and Valves
Include bends, elbows, and valves for additional head loss. - Step 6: Calculate
Click calculate to get total dynamic head (TDH).
How to Calculate Pump Head (Step-by-Step)
Pump head calculation uses this formula:
Step 1: Calculate Static Head
Static Head = Vertical height difference
Example: 20 meters
Step 2: Calculate Friction Loss
Use pipe charts or formulas
Example: 5 meters loss
Step 3: Calculate Velocity Head
Formula: V² / (2g)
Example: 2 meters
Step 4: Add All Values
Total Head = 20 + 5 + 2 = 27 meters
Final Result:
Pump must deliver at least 27 meters
head.
A water system lifts water 15 meters.
Pipe friction loss = 4 meters.
Velocity head = 1 meter.
Total Pump Head = 15 + 4 + 1 = 20 meters.
Pump Head Conversion Chart
| Head (meters) | Head (feet) | Pressure (bar) | Pressure (psi) |
|---|---|---|---|
| 1 m | 3.28 ft | 0.098 bar | 1.42 psi |
| 5 m | 16.4 ft | 0.49 bar | 7.1 psi |
| 10 m | 32.8 ft | 0.98 bar | 14.2 psi |
| 20 m | 65.6 ft | 1.96 bar | 28.4 psi |
| 30 m | 98.4 ft | 2.94 bar | 42.6 psi |
| 50 m | 164 ft | 4.9 bar | 71 psi |
FAQs About Pump Head Calculator
A pump head calculator helps you estimate the total head required for a pump system.
Pump head ensures the pump can move fluid efficiently through the system.
TDH is the sum of static head, friction loss, and velocity head.
No. Ignoring friction loss leads to incorrect pump selection.
Common units include meters, feet, bar, and psi.
Accuracy depends on correct input values and system details.
No. Pump head measures energy per unit weight, while pressure measures force per unit area.
Reduce pipe length, increase pipe diameter, or minimize fittings.
The pump will fail to deliver the required flow.
Yes, but adjustments are needed for fluid density and viscosity.