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mmH2O to Pa (pascals) Conversion Table

A low range air pressure reading in millimetres of water column can be converted to pascals using the following method:

  • 1 Pa = 1 pascals (Pa)
  • 1 mmH2O = 9.80665 pascals (Pa)
  • pascal value x 1 Pa = mmH2O value x 9.80665 Pa
  • Pa value = mmH2O value x 9.80665

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

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

mmH₂O 4°C Pa 🔗

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Product Selection Guides

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Help Guides

  • Determining the hydrostatic pressure range for a tank level sensor
  • How to get a 10 volt signal from a 4-20mA output pressure sensor
  • Measuring vacuum with negative gauge or absolute ranges
  • Pressure Sensor Accuracy Specifications
  • Measuring liquid level in a sealed tank with a hydrostatic pressure sensor
  • What is the difference between gauge and absolute pressure measurement
  • Measuring the difference in air pressure between rooms
  • Measurement Accuracy
  • Symptons and Causes of Damage to Pressure Transducer Diaphragms
  • How to Connect a 4-20mA Current Loop Pressure Transmitter
  • Difference between vented and non-vented water level measurement
  • Determining water tank volume using hydrostatic pressure
  • What is difference between working, burst and over pressure
  • Process Connections
  • Advantages and Disadvantages of using a 4 to 20 mA Signal
  • Not reading zero when pressure is vented to atmosphere
  • Measuring the volume of liquid in a horizontal cylinder tank
  • Determining calibration error of Bourdon tube pressure gauge
  • What is the difference between zero offset and zero drift?
  • Why use 4-20mA and 3-15 psi rather than 0-20mA & 0-15psi
  • How do you measure the volume of a liquid using pressure
  • What is the difference between vacuum and absolute pressure
  • What does negative and positive gauge pressure mean
  • Measuring negative pressure using a positive differential pressure range
  • Measuring vacuum as a negative gauge pressure using a dp sensor
  • Measuring liquid level in a tank using a dp sensor
  • Measuring density of a liquid using a dp sensor
  • Pressure Sensor Technology Comparative Guide

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