Apply Bernoulli's principle to fluid flow and calculate pressure, velocity, or height changes.
Fluid Parameters
Point 1
Point 2
Calculation Results
Enter parameters to calculate
About this calculator
Quick Reference
PStatic pressure
ρFluid density
vFlow velocity
gGravity (9.81 m/s²)
hElevation height
Overview
Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
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Pro Tips
The equation assumes the fluid is incompressible, non-viscous, and the flow is steady.
Pressure is usually in Pascals (Pa), density in kg/m³, velocity in m/s, and height in meters.
Density of water is approximately 1000 kg/m³.
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Fun Facts
"Bernoulli's principle is why airplane wings generate lift and why curveballs curve in baseball."
"The Pitot tube, used to measure aircraft speed, works based on this equation."
"Venturi meters use this principle to measure the flow rate of fluids in pipes."
