Water Pressure Formula:
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Definition: This calculator estimates the hydrostatic pressure at the bottom of a water column based on fluid density, height, and gravitational acceleration.
Purpose: It helps engineers, plumbers, and technicians determine the pressure in water pipes, tanks, and other fluid systems.
The calculator uses the hydrostatic pressure formula:
Where:
Explanation: The pressure increases linearly with depth and depends on the fluid's density and local gravity.
Details: Accurate pressure calculations ensure proper pipe sizing, pump selection, and system safety in plumbing and hydraulic systems.
Tips: Enter the fluid density (1000 kg/m³ for water), height of water column, and gravitational acceleration (9.81 m/s² on Earth). All values must be > 0.
Q1: What's the default fluid density?
A: The default is 1000 kg/m³, which is the density of pure water at 4°C.
Q2: How does height affect pressure?
A: Pressure increases by about 9.81 kPa for every meter of water depth (with water density).
Q3: When would I change the gravity value?
A: Only if calculating for locations with significantly different gravity (e.g., other planets or extreme elevations).
Q4: Can I use this for other fluids?
A: Yes, just input the correct density (e.g., 13600 kg/m³ for mercury).
Q5: Does this account for atmospheric pressure?
A: No, this calculates only hydrostatic pressure. Add atmospheric pressure (101325 Pa) for total pressure.