Inch of Water to Mm of Mercury Converter
EngineeringPascals, bar, psi and more.
How to convert Inch of Water to Mm of Mercury
Multiply the inch of water value by 1.86833: 1 inH₂O = 1.86833 mmHg. Going the other way, 1 mmHg = 0.535238 inH₂O, so divide by 1.86833 or use the Mm of Mercury to Inch of Water converter.
About these units
Inch of Water (inH₂O)
An inch of water is the pressure of a column of water 1 inch high, about 249 pascals. It is used for ventilation ducts and low gas pressures.
Mm of Mercury (mmHg)
A millimeter of mercury is the pressure exerted by a column of mercury 1 mm high, about 133.3 pascals. Blood pressure is measured in mmHg.
Inch of Water to Mm of Mercury conversion table
| Inch of Water (inH₂O) | Mm of Mercury (mmHg) |
|---|---|
| 1 inH₂O | 1.86833 mmHg |
| 2 inH₂O | 3.73665 mmHg |
| 3 inH₂O | 5.60498 mmHg |
| 4 inH₂O | 7.47331 mmHg |
| 5 inH₂O | 9.34163 mmHg |
| 10 inH₂O | 18.6833 mmHg |
| 20 inH₂O | 37.3665 mmHg |
| 25 inH₂O | 46.7082 mmHg |
| 50 inH₂O | 93.4163 mmHg |
| 100 inH₂O | 186.833 mmHg |
| 500 inH₂O | 934.163 mmHg |
| 1,000 inH₂O | 1,868.33 mmHg |
More inch of water conversions
- Inch of Water to Psi1 inH₂O = 0.0361273 psi
- Inch of Water to Ksi1 inH₂O = 3.6127e-5 ksi
- Inch of Water to Inch of Mercury1 inH₂O = 0.0735559 inHg
- Inch of Water to Foot of Water1 inH₂O = 0.0833333 ftH₂O
- Inch of Water to Pascal1 inH₂O = 249.089 Pa
- Inch of Water to Atmosphere1 inH₂O = 0.00245832 atm
- Inch of Water to Kgf per Sq Cm1 inH₂O = 0.00254 kgf/cm²
- Inch of Water to Exapascal1 inH₂O = 2.4909e-16 EPa
See every unit on the Pressure Converter.