mmHg to mmH2O Conversion Table

Using a water density of 1000 kg/m³, mercury density of 13,595.1 kg/m³ at 0 degC and standard gravity of 9.80665 m/s² to determine the pressure generated by 1 mmH₂O and 1 mmHg in SI units, a vacuum pressure in millimeters of mercury column can be converted to millimetres of water column using the calculation below:

• 1 mmH₂O = 9.80665 pascals (Pa)
• 1 mmHg = 133.322 pascals (Pa)
• mmH₂O value x 9.80665 Pa = mmHg value x 133.322 Pa
• mmH₂O value = mmHg value x 13.5951

0…100 mmHg to mmH₂O Conversion

• UPS-HSR USB Pressure Sensor with High Sample Rate Logging
• LEX1 (Ei) High Accuracy Digital Pressure Gauge
• 33X High Accuracy Digital Output Pressure Sensor

Request product info for a mmHg 0°C unit range pressure measurement device.

Enter a pressure in mmHg 0°C below to convert it to the equivalent pressure in mmH₂O 4°C.

From		mmHg 0°C
To		mmH₂O 4°C

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Request product info for a mmH₂O 4°C unit range pressure measurement device.

Choose a value between 0 and 100 mmHg 0°C from the pressure conversion table below, to obtain the converted value in mmH₂O 4°C.

mmHg 0°C	mmH₂O 4°C	🔗

0…1,000 mmHg to mmH₂O Conversion

• UPS-HSR USB Pressure Sensor with High Sample Rate Logging
• LEX1 (Ei) High Accuracy Digital Pressure Gauge
• 33X High Accuracy Digital Output Pressure Sensor

Request product info for a mmHg 0°C unit range pressure measurement device.

Enter a pressure in mmHg 0°C below to convert it to the equivalent pressure in mmH₂O 4°C.

From		mmHg 0°C
To		mmH₂O 4°C

Sorry, a graphic could not be displayed here, because your browser does not support HTML5 Canvas.

Request product info for a mmH₂O 4°C unit range pressure measurement device.

Choose a value between 0 and 1000 mmHg 0°C from the pressure conversion table below, to obtain the converted value in mmH₂O 4°C.

mmHg 0°C	mmH₂O 4°C	🔗