Bernoulli Equation Calculator
Compute pressure, velocity, or height in ideal fluid flow using the Bernoulli equation at two points along a streamline
Calculator
Enter the known quantities at two points (P₁, V₁, h₁, P₂, V₂, h₂) along a streamline and the fluid density. Leave the property to calculate blank.
About the Bernoulli Equation Calculator
The Bernoulli Equation Calculator allows you to compute the relationship between pressure, velocity, and height at two points in an ideal fluid flow along a streamline. This calculator is ideal for fluid mechanics students, engineers, and anyone working on pipeline, channel, or tank design.
What You Can Calculate
- Pressure (P): The fluid pressure at a given point, in pascals (Pa), kilopascals (kPa), bar, or atm.
- Velocity (V): The fluid flow speed at a point, in meters per second (m/s), cm/s, km/h, or ft/s.
- Height (h): The vertical elevation of the fluid at a point, in meters (m), centimeters, millimeters, or feet.
Formulas Used in the Calculator
The calculator is based on the Bernoulli equation for incompressible, ideal fluid flow:
- P + 0.5 × ρ × V² + ρ × g × h = constant
- Where ρ is the fluid density and g is gravitational acceleration (9.81 m/s²).
How to Use the Calculator
- Enter known values for pressure, velocity, and height at two points along a streamline.
- Input the fluid density (ρ) in kg/m³, g/cm³, or lb/ft³.
- Leave the property you want to calculate blank. The calculator will solve for the missing value.
- Results are displayed instantly in a clear table format with units.