Millimeter of Water Column (mmWC) to Psi Pressure Unit Conversion Calculator

This calculator allows you to convert pressure values from millimeters of water column (mmWC) to pounds per square inch (psi), making it useful for various industrial, HVAC, and process control applications.

Definition: Millimeter of Water Column (mmWC)

A millimeter of water column (symbol: mmWC or mmH₂O) is a unit of pressure defined as the pressure exerted by a 1 mm high column of water at 4°C under standard gravity. It is commonly used in low-pressure systems such as HVAC, water treatment, and gas pressure measurements.

Definition: Pound-force per Square Inch (psi)

Pounds per square inch (symbol: psi) is a unit of pressure used in the imperial and US customary systems. It represents the pressure applied by one pound-force over an area of one square inch and is widely used in many industries, especially in hydraulics and pneumatics.

Formula for mmWC to Psi Conversion:

Pressure in Psi=Pressure in mmWC÷703.07​

How to Convert mmWC to Psi: Example Calculation

Suppose you have a pressure of 703.07 mmWC.

To convert it to psi:

703.07 mmWC÷703.07=1 psi

So, 703.07 mmWC is equal to 1 psi.

Quick Reference Conversion Table for mmWC to Psi

Use of mmWC to Psi Conversion Calculator:

• HVAC Systems: Convert mmWC to psi for precise pressure readings in air-conditioning and ventilation systems.
• Process Instrumentation: Helps in converting low-pressure readings from mmWC to psi for system monitoring and control.
• Pneumatics and Hydraulics: Suitable for fluid system pressure conversions between these two units.
• Water Treatment Plants: Ensures accuracy when converting pressure measurements in systems that rely on water column pressure.

This tool is particularly useful for professionals in engineering, process control, and HVAC systems requiring accurate pressure unit conversions.

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