Bernoulli Equation Calculator

Pressure at Point 2

Pressure at Point 1 P₁ (Pa)

Velocity at Point 1 v₁ (m/s)

Height at Point 1 h₁ (m)

Velocity at Point 2 v₂ (m/s)

Height at Point 2 h₂ (m)

Fluid Density ρ (kg/m³)

Velocity at Point 2

Pressure at Point 1 P₁ (Pa)

Velocity at Point 1 v₁ (m/s)

Height at Point 1 h₁ (m)

Pressure at Point 2 P₂ (Pa)

Height at Point 2 h₂ (m)

Fluid Density ρ (kg/m³)

Formula

P₁ + ½ρv₁² + ρgh₁ = P₂ + ½ρv₂² + ρgh₂, where P is pressure, ρ is fluid density, v is flow velocity, g is gravitational acceleration, and h is height.

Frequently Asked Questions

What is Bernoulli's equation?

Bernoulli's equation states that for an ideal, incompressible, steady-flow fluid, the sum of pressure energy, kinetic energy, and potential energy per unit volume is constant along a streamline: P + ½ρv² + ρgh = constant.

What are the assumptions of Bernoulli's equation?

Bernoulli's equation assumes: (1) the fluid is incompressible, (2) the flow is steady (not changing with time), (3) the flow is along a streamline, (4) there is no friction (inviscid flow), and (5) no work is done on or by the fluid.

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