Pump Head Calculator
Calculate total dynamic head for pump selection including static head, friction losses, and velocity head. Estimate pump power requirements.
Steel: 0.15mm, PVC: 0.003mm, Cast Iron: 0.25mm
Enter system parameters to calculate pump head
DISCLAIMER
This calculator provides ESTIMATES for preliminary planning purposes. Results are based on standard assumptions and may not reflect your specific project conditions.
By using this tool, you acknowledge that:
1. All calculations are approximate and based on typical industry standards and assumptions.
About This Calculator
The Pump Head Calculator helps MEP engineers and contractors calculate total dynamic head (TDH) for pump selection in water supply, HVAC, and fire protection systems across the UAE and Gulf. Calculate static head, friction losses, and velocity head to determine required pump capacity. Estimate pump power requirements and select appropriate pump curves for efficient system operation.
When to Use This Calculator
- Sizing water supply pumps for high-rise buildings
- Calculating TDH for fire pump selection
- Determining chilled/hot water pump requirements for HVAC
- Verifying existing pump adequacy for system modifications
- Preparing pump specifications for tender submissions
How to Use This Calculator
Calculate Static Head
Enter elevation difference between pump and highest point of delivery (meters).
Determine Friction Losses
Input pipe length, diameter, material, flow rate to calculate friction head loss using Hazen-Williams or Darcy-Weisbach.
Add Minor Losses
Account for fittings, valves, and equipment pressure drops in the system.
Include Discharge Pressure
Add required pressure at the delivery point (terminal units, sprinklers, etc.).
Review TDH and Power
Get total dynamic head (m) and estimated motor power (kW/HP) for pump selection.
Typical Scenarios in UAE & Gulf Projects
MEP contractor sizes the domestic water booster pump for a 50-floor tower. Static head = 150m, friction losses = 25m, terminal pressure = 20m. TDH = 195m. At 15 L/s flow rate, calculator determines 45 kW pump motor, recommending variable speed drive for energy efficiency.
HVAC engineer sizes the primary chilled water pump for a 5,000 TR cooling plant. With 300m pipe run, coil pressure drops, and chillers, TDH = 35m at 280 L/s. Calculator specifies 150 kW pump with 78% efficiency, achieving optimal operating point on manufacturer curve.
Frequently Asked Questions
Take Your Calculations Further
This calculator reflects the logic built into Arkan's construction management platform.
Last Updated: January 2026
Standards Reference: ASHRAE Handbook (Fundamentals), Hydraulic Institute Standards, CIBSE Guide B