Convert Centimeters of Water to Inches of Water
Convert centimeters of water to inches of water (cmH₂O to inH₂O) with our instant calculator. 1 cmH₂O = 0.393701 inH₂O. Includes exact formula and reference tables.
How to Convert Centimeters of Water to Inches of Water (cmH₂O to inH₂O)
1 Centimeter of Water (cmH₂O) is equal to 0.393701 Inches of Water (inH₂O). Multiply the centimeter of water value by 0.3937007874
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 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).
About Inches of Water (inH₂O): Inch of Water (inH₂O) is a unit in the Pressure measurement category. It is widely used in hvac duct & fan static pressure. Relative to the pressure base unit, 1 inH₂O equals 249.08891 Pascals (Pa).
Need to convert in the opposite direction? Visit our Convert Inches of Water to Centimeters of Water (inH₂O to cmH₂O) calculator (1 inH₂O = 2.54 cmH₂O).
Step-by-Step Worked Examples (cmH₂O to inH₂O)
- Convert 5 Centimeters of Water to Inches of Water: Applying the formula (inH₂O = cmH₂O × 0.3937007874): starting with 5 cmH₂O, multiply the centimeter of water value by 0.3937007874 to get 1.9685 inH₂O.
- Convert 10 Centimeters of Water to Inches of Water: Applying the formula (inH₂O = cmH₂O × 0.3937007874): starting with 10 cmH₂O, multiply the centimeter of water value by 0.3937007874 to get 3.937 inH₂O.
- Convert 50 Centimeters of Water to Inches of Water: Applying the formula (inH₂O = cmH₂O × 0.3937007874): starting with 50 cmH₂O, multiply the centimeter of water value by 0.3937007874 to get 19.685 inH₂O.
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Frequently Asked Questions
Verified answers and formulas for converting centimeters of water to inches of water.
There are 0.393701 inches of water (inH₂O) in 1 centimeter of water (cmH₂O). Conversely, 1 inch of water equals 2.54 centimeters of water.
To convert centimeters of water (cmH₂O) to inches of water (inH₂O), use the formula: inH₂O = cmH₂O × 0.3937007874. Multiply the centimeter of water value by 0.3937007874. For example, 10 cmH₂O equals 3.937 inH₂O.
To convert in the reverse direction from inches of water (inH₂O) to centimeters of water (cmH₂O), use the inverse formula: cmH₂O = inH₂O × 2.54. Multiply the inch of water value by 2.54 (1 inH₂O = 2.54 cmH₂O).
Both centimeter of water and inch of water measure pressure. 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). Inch of Water (inH₂O) is a unit in the Pressure measurement category. It is widely used in hvac duct & fan static pressure. Relative to the pressure base unit, 1 inH₂O equals 249.08891 Pascals (Pa).
1 bar equals approximately 14.5038 PSI. For car tires, 2.2 bar is roughly 32 PSI.