Water Pressure Formula:
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Definition: This calculator determines the water pressure at the base of a tank based on the height of the water column.
Purpose: It helps engineers, plumbers, and water system designers calculate static water pressure for system design and analysis.
The calculator uses the hydrostatic pressure formula:
Where:
Explanation: The pressure increases linearly with water depth due to the weight of the water above.
Details: Proper pressure calculation ensures correct pump sizing, pipe strength requirements, and system performance.
Tips: Enter water density (default 1000 kg/m³), gravity (default 9.81 m/s²), and water height in meters. All values must be > 0.
Q1: Why is water density typically 1000 kg/m³?
A: This is the standard density of pure water at 4°C. It may vary slightly with temperature and impurities.
Q2: How does this relate to water head pressure?
A: The result can be converted to head pressure (meters of water column) by dividing by (ρ × g).
Q3: Does this account for atmospheric pressure?
A: No, this calculates only the hydrostatic pressure. Total pressure would add atmospheric pressure (101325 Pa at sea level).
Q4: What's the practical application?
A: Used in designing water towers, storage tanks, plumbing systems, and hydraulic engineering projects.
Q5: How accurate is this calculation?
A: Very accurate for static conditions. Dynamic systems with flow require additional considerations.