This calculator allows you to convert pressure values from millimeters of water column (mmWC) to bar, which is essential for various instrumentation, HVAC, and industrial applications.
Definition: Millimeter of Water Column (mmWC)
A millimeter of water column (symbol: mmWC or mmH₂O) is a unit of pressure that represents the pressure exerted by a 1 mm high column of water at 4°C under standard gravity. It is often used in low-pressure systems such as HVAC, gas pressure measurements, and water treatment.
Definition: Bar
A bar is a metric unit of pressure, defined as 100,000 Pascals (Pa). While not an SI unit, it is commonly used in meteorology and engineering, especially for high-pressure measurements.
Formula for mmWC to Bar Conversion:
Pressure in Bar = Pressure in mmWC ÷10197.16
How to Convert mmWC to Bar: Example Calculation
Suppose you have a pressure of 10197.16 mmWC.
To convert it to bar:
10197.16 mmWC ÷10197.16=1 bar
So, 10197.16 mmWC is equal to 1 bar.
Quick Reference Conversion Table for mmWC to Bar
| Millimeter of Water Column (mmWC) | Bar |
| 100 mmWC | 0.0098 bar |
| 500 mmWC | 0.0490 bar |
| 1000 mmWC | 0.0981 bar |
| 5000 mmWC | 0.4904 bar |
| 10000 mmWC | 0.9808 bar |
| 10197.16 mmWC | 1 bar |
| 50000 mmWC | 4.9020 bar |
| 100000 mmWC | 9.8041 bar |
Use of mmWC to Bar Conversion Calculator:
- HVAC Systems: Convert mmWC to bar for accurate pressure readings in air-conditioning and ventilation systems.
- Process Instrumentation: Useful for converting low-pressure readings from mmWC to bar in control and monitoring systems.
- Pneumatics and Hydraulics: Ideal for fluid system pressure conversions.
- Water Treatment Plants: Ensures accurate conversions in systems where water column pressure is measured.
This tool is designed for professionals in engineering, process control, HVAC, and other fields where precision in pressure conversion is required.
FAQ: mmwc to bar
How do I convert bar to mm of water column (mmWC)?
Pressure in bar can be converted to millimeters of water column (mmWC) by applying the following conversion factor:
1 bar = 10,197.162 mmWC
One bar of pressure therefore corresponds to the pressure produced by a 10197.162 mm tall column of water at 4°C under normal gravity.
Is 1 mmWC equal to 1 bar?
No, 1 mmWC is far smaller than 1 bar.
Specifically:
1 mmWC = 9.8 × 10⁻⁵ bar
= 9.8 × 10⁻⁸ mbar
= 0.0014 psi
= 0.0098 kilopascal (kPa)
What is the full form of mmWC?
mmWC is millimeters of water column.
At 4°C under normal gravity, it is a pressure measuring device indicating the pressure produced by a vertical column of water precisely 1 millimeter high. Common low-pressure uses include:
- Gas pressure measurements
- HVAC systems
- Fluid flow experiments
How many mmWC are in 1 bar?
One bar is around 10,197.162 mmWC.
This is predicated on the conventional gravity and water density at 4°C. Always make sure appropriate unit conversions depending on the needed accuracy and use.
What is the symbol for millimeters of water column?
Standard symbols for millimeters of water column are:
mmWC
mmH2O
Used interchangeably, these symbols indicate the same unit of low-pressure measurement.
What does “inch WC” mean?
Inch WC also spelled in. WC, “WC, or inH2O refers to inches of water column, a unit used to gauge low pressure differentials.
Common applications include:
- HVAC systems (e.g., before/after a coil)
- Lines of gas pressure
- Monitoring of Airflow
- Measurements of industrial differential pressure
What is the full form of mbar?
mbar is millibar, a pressure unit mostly used in meteorology.
1 mbar = 1/1000 bar = 100 pascals (Pa)
Usually between 100 and 1050 mbar in normal weather circumstances, millibars are often used in weather forecasting to indicate air pressure.
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