What is a inches of water?
Definition
inH₂O
Inches of water column (inH₂O) is used in HVAC and low-pressure measurement, equal to approximately 249 pascals.
Unit system
Engineering
Convert inches of water
All pressure units
| Unit | Symbol | System |
|---|---|---|
| pascals | Pa | SI / Metric |
| kilopascals | kPa | SI / Metric |
| megapascals | MPa | SI / Metric |
| bar | bar | SI / Metric |
| millibars | mbar | SI / Metric |
| PSI | psi | Imperial |
| atmospheres | atm | Reference |
| torr | Torr | Scientific |
| mmHg | mmHg | Medical |
| inches of mercury | inHg | Aviation |
| inches of water | inH₂O | Engineering |