inH2O / inWC to kPa Pressure Calculator
Convert Inches of Water Column (inWC / inH2O) to Kilopascals (kPa), PSI, and Millibars (mbar).
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Gas Pressure Input
Pressure Output
1.74
kPa
Pressure (PSI):
0.253 PSI
Pressure (mbar):
17.44 mbar
Ounces per Sq Inch (oz/in²):
4.05 oz/in²
kPa = 7 inWC × 0.249089 = 1.7436 kPa
Understanding Natural Gas & LP Pressure Units
Low pressure gas lines for residential generators and appliances are measured in inches of water column (inWC). 1 PSI = 27.68 inWC, and 1 inWC = 0.249089 kPa = 2.49089 mbar.
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