Apply Bernoulli’s equation to relate pressure, velocity and elevation along a streamline.
Bernoulli’s equation is energy conservation along a streamline: pressure, kinetic and potential terms trade against each other. Where a fluid speeds up, its pressure must fall — the venturi effect. It assumes inviscid, incompressible steady flow, so real systems need a head-loss term added for friction.
Bernoulli Equation
p₁ + ½ρv₁² + ρgh₁ = p₂ + ½ρv₂² + ρgh₂
p₁ + ½ρv₁² + ρgh₁ = p₂ + ½ρv₂² + ρgh₂ Bernoulli’s equation is energy conservation along a streamline: pressure, kinetic and potential terms trade against each other. Where a fluid speeds up, its pressure must fall — the venturi effect.
It assumes inviscid, incompressible steady flow, so real systems need a head-loss term added for friction.
This calculator takes 6 inputs: Pressure at point 1, Velocity at point 1, Elevation at point 1, Velocity at point 2, Elevation at point 2, Fluid density. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.