Inches of Water to Pascals

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Inches of Water inH2O

Pascals pa

1 inH2O = — pa

Quick reference

Inches of Water (inH2O)	Pascals (pa)

Formula

Pascals = inches of water × 249.089

Multiply the inches of water value by 249.089 to get pascals. To reverse — divide pascals by 249.089 to get inches of water.

About this conversion

Inches of water column (inH₂O) is used in HVAC and low-pressure measurement, equal to approximately 249 pascals. Learn more →

The pascal (Pa) is the SI unit of pressure, equal to one newton per square meter. Learn more →