Convert Inches of Mercury to Centimeters of Water
Convert inches of mercury to centimeters of water (inHg to cmH₂O) with our instant calculator. 1 inHg = 34.531558 cmH₂O. Includes exact formula and reference tables.
How to Convert Inches of Mercury to Centimeters of Water (inHg to cmH₂O)
1 Inch of Mercury (inHg) is equal to 34.531558 Centimeters of Water (cmH₂O). Multiply the inch of mercury value by 34.53155767
Unit Definitions & Metrology Context
The SI unit of pressure is the pascal (Pa). Standard sea-level atmosphere is defined as 101,325 Pa (1.01325 bar or ~14.696 psi).
About Inches of Mercury (inHg): Inch of Mercury (inHg) is a unit in the Pressure measurement category. It is widely used in inches of mercury (aviation altimeters). Relative to the pressure base unit, 1 inHg equals 3386.389 Pascals (Pa).
About Centimeters of Water (cmH₂O): Centimeter of Water (cmH₂O) is a unit in the Pressure measurement category. It is widely used in cpap & medical respiratory pressure. Relative to the pressure base unit, 1 cmH₂O equals 98.0665 Pascals (Pa).
Need to convert in the opposite direction? Visit our Convert Centimeters of Water to Inches of Mercury (cmH₂O to inHg) calculator (1 cmH₂O = 0.028959 inHg).
Step-by-Step Worked Examples (inHg to cmH₂O)
- Convert 5 Inches of Mercury to Centimeters of Water: Applying the formula (cmH₂O = inHg × 34.53155767): starting with 5 inHg, multiply the inch of mercury value by 34.53155767 to get 172.6578 cmH₂O.
- Convert 10 Inches of Mercury to Centimeters of Water: Applying the formula (cmH₂O = inHg × 34.53155767): starting with 10 inHg, multiply the inch of mercury value by 34.53155767 to get 345.3156 cmH₂O.
- Convert 50 Inches of Mercury to Centimeters of Water: Applying the formula (cmH₂O = inHg × 34.53155767): starting with 50 inHg, multiply the inch of mercury value by 34.53155767 to get 1726.5779 cmH₂O.
Popular Pressure Conversions
Frequently Asked Questions
Verified answers and formulas for converting inches of mercury to centimeters of water.
There are 34.531558 centimeters of water (cmH₂O) in 1 inch of mercury (inHg). Conversely, 1 centimeter of water equals 0.028959 inches of mercury.
To convert inches of mercury (inHg) to centimeters of water (cmH₂O), use the formula: cmH₂O = inHg × 34.53155767. Multiply the inch of mercury value by 34.53155767. For example, 10 inHg equals 345.3156 cmH₂O.
To convert in the reverse direction from centimeters of water (cmH₂O) to inches of mercury (inHg), use the inverse formula: inHg = cmH₂O × 0.028959018. Multiply the centimeter of water value by 0.028959018 (1 cmH₂O = 0.028959 inHg).
Both inch of mercury and centimeter of water measure pressure. Inch of Mercury (inHg) is a unit in the Pressure measurement category. It is widely used in inches of mercury (aviation altimeters). Relative to the pressure base unit, 1 inHg equals 3386.389 Pascals (Pa). Centimeter of Water (cmH₂O) is a unit in the Pressure measurement category. It is widely used in cpap & medical respiratory pressure. Relative to the pressure base unit, 1 cmH₂O equals 98.0665 Pascals (Pa).
1 bar equals approximately 14.5038 PSI. For car tires, 2.2 bar is roughly 32 PSI.