Starting with defining the water density and gravity, a convenient water density to use is 1000 kg/m³ which is very close to the density at 4 degC. Use the standard for gravity at sea level of 9.80665 m/s², then you can calculate the pascals pressure generated by 1 metre of water using SI units as described in the conversion calculation below:

- 1 mH
_{2}O = 9,806.65 pascals (Pa) - 1 psi = 6,894.76 pascals (Pa)
- mH
_{2}O value x 9,806.65 Pa = psi value x 6,894.76 Pa **mH**_{2}O value = psi value x 0.703070

**psi pressure related products**

- Contaminated groundwater submersible plastic body 5 psi pressure transducer & display
- Low operating temperature plus/minus 1 psi pressure transmitter
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- Dust ATEX approved 2 psi pressure transmitter

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Enter a pressure in psi below to convert it to the equivalent pressure in mH2O.

**mH2O pressure related products**

- Ground water flooded pit 40mH2O 4-20mA output freshwater pressure sensor for water treatment use
- 10mH2O absolute 4-20mA marine approved seawater pressure sensor for bilge water leak testing use
- Hydrochloric acid storage tank 1mH2Og hydro-static pressure transmitter
- 7mH2O g range 4-20mA out hydrostatic liquid level pressure sensor

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Choose a value between 0 and 1000 psi from the pressure conversion table below, to obtain the converted value in mH2O.

psi | mH2O | 🔗 |
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