Science calculator
Bernoulli's Equation Calculator
Calculate fluid pressure, velocity, or height.
About the bernoulli's equation calculator
Bernoulli's equation calculator computes the Bernoulli constant for fluid flow at a point.
How to use this calculator
- 1
Enter pressure, velocity, and height
Enter the pressure, velocity, and elevation at point 1.
- 2
Enter fluid density
Enter the fluid density (1000 kg/m³ for water by default).
- 3
View results
See the Bernoulli constant and component breakdown.
How the calculation works
P + ½ρv² + ρgh = constant. Enter values at point 1 to find the constant.
Example: Water, P=101325Pa, v=2m/s, h=0: constant≈103,325Pa.
Understanding scientific constants
Key constants used: g = 9.81 m/s² (Earth gravity), c = 299,792,458 m/s (speed of light), G = 6.674×10⁻¹¹ N·m²/kg² (gravitational constant), h = 6.626×10⁻³⁴ J·s (Planck's constant), R = 8.314 J/(mol·K) (ideal gas constant). Results assume ideal conditions — real-world measurements may vary.
Ideal vs. real-world conditions
Most physics calculators assume ideal conditions: no air resistance, perfect vacuums, uniform gravity. Real-world results will differ due to friction, air resistance, temperature variations, and measurement uncertainty. Use these tools for learning and estimation, not precision engineering.
Important limitations
This tool provides a mathematical estimate based only on the values entered. It does not account for regulations, taxes, lender fees, market conditions, or individual circumstances. Results are for planning purposes only — consult a qualified professional for regulated, medical, financial, or construction decisions.
Frequently asked questions about bernoulli's equation calculator
How accurate is the bernoulli equation calculator?+
The calculation follows the displayed formula and retains full numeric precision before formatting the result.
Can I use the result professionally?+
Use it as a planning estimate. Confirm regulated, medical, financial, or construction decisions with a qualified professional.