Pump Head Calculator
Calculate total pump head from pressure difference, fluid density, and elevation change using the simplified Bernoulli equation.
How to Use the Pump Head Calculator
- Enter the required pressure rise across the pump in kPa.
- Enter the fluid density (1000 kg/m³ for water).
- Enter the elevation difference between pump inlet and outlet in metres.
Casos de Uso
- •Sizing centrifugal pumps for water supply systems.
- •Calculating pump duty point for system curve matching.
- •Hydraulic design of booster pump stations.
Fórmula
H = ΔP / (ρg) + Δz, where ΔP is pressure difference (kPa), ρ is density (kg/m³), g = 9.81 m/s², Δz is elevation rise (m).
Perguntas Frequentes
What is pump head?
Pump head is the height (in metres) that a pump can raise a fluid. It combines pressure head (from pressure rise) and static head (from elevation change).
How do I convert pump head to pressure?
P (kPa) = H (m) × ρ (kg/m³) × 9.81 / 1000. For water at 1000 kg/m³, 10.2 m head ≈ 1 bar.
Is this calculator free?
Yes, all OhMyCalc calculators are completely free to use.