Inches of Water to mmHg
Type a value — result updates instantly.
inH2O
mmhg
Quick reference
| Inches of Water (inH2O) | mmHg (mmhg) |
|---|
Formula
mmHg = inches of water × 1.8683263
Multiply the inches of water value by 1.8683263077361576 to get mmhg. To reverse — divide mmhg by 1.8683263077361576 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 →
Millimeters of mercury (mmHg) is a pressure unit used in medicine for blood pressure and barometric measurement, equal to 133.322 pascals. Learn more →
Source: NIST International Reference