Bernoulli Equation Calculator
Calculate P₂ given P₁, velocities, elevations, and fluid density.
How to Use This Calculator
- Enter fluid density ρ and gravity g (defaults provided).
- Provide P₁, v₁, h₁ for point 1 and v₂, h₂ for point 2.
- Click Calculate to obtain P₂ in Pascals.
Formula
P₁ + ½ρv₁² + ρgh₁ = P₂ + ½ρv₂² + ρgh₂
Solve for P₂: P₂ = P₁ + ½ρ(v₁² − v₂²) + ρg(h₁ − h₂)
Frequently Asked Questions
When is Bernoulli valid?
For steady, incompressible, inviscid flow along a streamline without pumps/turbines between points.
Can I use it for gases?
For low-speed, nearly incompressible gas flows, it can be acceptable. Otherwise, compressibility matters.