Convert Centimeters of Water to Standard Atmospheres
Convert centimeters of water to standard atmospheres (cmH₂O to atm) with our instant calculator. 1 cmH₂O = 0.000968 atm. Includes exact formula and reference tables.
How to Convert Centimeters of Water to Standard Atmospheres (cmH₂O to atm)
1 Centimeter of Water (cmH₂O) is equal to 0.000968 Standard Atmospheres (atm). Multiply the centimeter of water value by 0.0009678411054
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 Standard Atmospheres (atm): Standard Atmosphere (atm) is a unit in the Pressure measurement category. It is a standard everyday unit of pressure measurement. Relative to the pressure base unit, 1 atm equals 101325 Pascals (Pa).
Need to convert in the opposite direction? Visit our Convert Standard Atmospheres to Centimeters of Water (atm to cmH₂O) calculator (1 atm = 1033.227453 cmH₂O).
Step-by-Step Worked Examples (cmH₂O to atm)
- Convert 5 Centimeters of Water to Standard Atmospheres: Applying the formula (atm = cmH₂O × 0.0009678411054): starting with 5 cmH₂O, multiply the centimeter of water value by 0.0009678411054 to get 0.0048 atm.
- Convert 10 Centimeters of Water to Standard Atmospheres: Applying the formula (atm = cmH₂O × 0.0009678411054): starting with 10 cmH₂O, multiply the centimeter of water value by 0.0009678411054 to get 0.0097 atm.
- Convert 50 Centimeters of Water to Standard Atmospheres: Applying the formula (atm = cmH₂O × 0.0009678411054): starting with 50 cmH₂O, multiply the centimeter of water value by 0.0009678411054 to get 0.0484 atm.
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Frequently Asked Questions
Verified answers and formulas for converting centimeters of water to standard atmospheres.
There are 0.000968 standard atmospheres (atm) in 1 centimeter of water (cmH₂O). Conversely, 1 standard atmosphere equals 1033.227453 centimeters of water.
To convert centimeters of water (cmH₂O) to standard atmospheres (atm), use the formula: atm = cmH₂O × 0.0009678411054. Multiply the centimeter of water value by 0.0009678411054. For example, 10 cmH₂O equals 0.0097 atm.
To convert in the reverse direction from standard atmospheres (atm) to centimeters of water (cmH₂O), use the inverse formula: cmH₂O = atm × 1033.227453. Multiply the standard atmosphere value by 1033.227453 (1 atm = 1033.227453 cmH₂O).
Both centimeter of water and standard atmosphere 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). Standard Atmosphere (atm) is a unit in the Pressure measurement category. It is a standard everyday unit of pressure measurement. Relative to the pressure base unit, 1 atm equals 101325 Pascals (Pa).
1 bar equals approximately 14.5038 PSI. For car tires, 2.2 bar is roughly 32 PSI.