The value of hydrostatic pressure for a fixed height column of fluid is directly proportional to the gravitational strength at a particular geographical location.
Generally if the height above sea level is increased the hydrostatic pressure will decrease. Also since the world is wider at the equator than the poles the gravitational pull will increase as you move closer to either the north or south pole.
For example, the acceleration due to gravity in Bangkok, Thailand is 9.783 m/s², whereas in London, England it is 9.812m/s². This represents a difference of approx 0.3%, therefore a column of water that has a hydrostatic pressure of 1000 mmWG in Bangkok will measure 1003 mmH20 in London, England even though the water level has not changed between the two locations.
In order to standardise the measurement of hydrostatic pressure the universal value for Earth’s gravity of 9.80665 m/s² is used.
This local gravity calculator will provide you with a good approximation of the local gravity at your location.
Featured hydrostatic pressure measurement products
Chemical Resistant Hydrostatic Liquid Level & Pressure Sensors - Find durable hydrostatic liquid level and pressure sensors designed for harsh chemical environments. Ideal for storage tanks and process applications requiring high corrosion resistance.
4-20mA Output Hydrostatic Level Transmitters & Sensors - Explore industrial 4-20mA hydrostatic level transmitters for reliable liquid depth measurement. Ideal for tank gauging, borehole control & process monitoring applications.
Related Help Guides
- Measuring liquid level in a sealed tank with a hydrostatic pressure sensor
- Difference between vented and non-vented water level measurement
- Determining water tank volume using hydrostatic pressure
- Measuring the volume of liquid in a horizontal cylinder tank
- How do you measure the volume of a liquid using pressure
- Measuring liquid level in a tank using a dp sensor
Related Technical Terms
- cmH2O – Centimetres of Water Column at 4 deg C Pressure Unit
- ftH2O – Feet of Water Column at 4 deg C Pressure Unit
- Hydrostatic Pressure
- mH2O – Metres of Water Gauge at 4 deg C Pressure Unit
- mmH2O – Millimetres of Water Column at 4 deg C Pressure Unit
- Specific Gravity
Related Online Tools
- Liquid Level to Hydrostatic Pressure Calculator
- Fluid Depth, Density, Gravity, and Pressure Calculator
- Pressure to Liquid Level Calculator
