Bernoulli Energy Head Loss Calculator

Calculate the head loss $ h_L $ using: $$ h_L = \frac{P_1 – P_2}{\rho g} + \frac{v_1^2 – v_2^2}{2g} + (z_1 – z_2) $$

* Use consistent SI units: pressures in Pa, density in kg/m³, velocities in m/s, elevations in m, and g in m/s².

Step 1: Enter Parameters

Pressure at Point 1, $P_1$ (Pa):

e.g., 150,000 Pa

Pressure at Point 2, $P_2$ (Pa):

e.g., 100,000 Pa

Velocity at Point 1, $v_1$ (m/s):

e.g., 3 m/s

Velocity at Point 2, $v_2$ (m/s):

e.g., 1 m/s

Elevation at Point 1, $z_1$ (m):

e.g., 10 m

Elevation at Point 2, $z_2$ (m):

e.g., 5 m

Density, $\rho$ (kg/m³):

e.g., 1000 kg/m³ (for water)

Gravitational Acceleration, $g$ (m/s²):

Default is 9.81 m/s²

Calculated Energy Head Loss