Hectopascals (hPa)	Centimeters of Water (cmH₂O)
1 hPa	1.0197 cmH₂O
2 hPa	2.0394 cmH₂O
5 hPa	5.0986 cmH₂O
10 hPa	10.1972 cmH₂O
25 hPa	25.4929 cmH₂O
50 hPa	50.9858 cmH₂O
100 hPa	101.9716 cmH₂O
250 hPa	254.9291 cmH₂O
500 hPa	509.8581 cmH₂O
1000 hPa	1019.72 cmH₂O

Convert Hectopascals to Centimeters of Water

Convert hectopascals to centimeters of water (hPa to cmH₂O) with our instant calculator. 1 hPa = 1.019716 cmH₂O. Includes exact formula and reference tables.

How to Convert Hectopascals to Centimeters of Water (hPa to cmH₂O)

1 Hectopascal (hPa) is equal to 1.019716 Centimeters of Water (cmH₂O). Multiply the hectopascal value by 1.019716213

Quick Answer 1 hPa = 1.019716 cmH₂O

Formula cmH₂O = hPa × 1.019716213

Inverse Factor 1 cmH₂O = 0.980665 hPa

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 Hectopascals (hPa): Hectopascal (hPa) is a unit in the Pressure measurement category. It is widely used in hectopascals (meteorology). Relative to the pressure base unit, 1 hPa equals 100 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 Hectopascals (cmH₂O to hPa) calculator (1 cmH₂O = 0.980665 hPa).

Step-by-Step Worked Examples (hPa to cmH₂O)

Convert 5 Hectopascals to Centimeters of Water: Applying the formula (cmH₂O = hPa × 1.019716213): starting with 5 hPa, multiply the hectopascal value by 1.019716213 to get 5.0986 cmH₂O.
Convert 10 Hectopascals to Centimeters of Water: Applying the formula (cmH₂O = hPa × 1.019716213): starting with 10 hPa, multiply the hectopascal value by 1.019716213 to get 10.1972 cmH₂O.
Convert 50 Hectopascals to Centimeters of Water: Applying the formula (cmH₂O = hPa × 1.019716213): starting with 50 hPa, multiply the hectopascal value by 1.019716213 to get 50.9858 cmH₂O.

Popular Pressure Conversions

Pound per Square Inch ⇄ Bar

Multiply PSI by ~0.0689476 to convert to bar.

Bar ⇄ Pound per Square Inch

Multiply bar by ~14.5038 to find pressure in pounds per square inch (PSI).

Kilopascal ⇄ Pound per Square Inch

1 PSI equals approximately 6.89476 kilopascals (kPa).

Standard Atmosphere ⇄ Pound per Square Inch

1 standard atmosphere equals approximately 14.6959 PSI.

Frequently Asked Questions

Verified answers and formulas for converting hectopascals to centimeters of water.

How many centimeters of water are in 1 hectopascal?

There are 1.019716 centimeters of water (cmH₂O) in 1 hectopascal (hPa). Conversely, 1 centimeter of water equals 0.980665 hectopascals.

How do you convert hectopascals to centimeters of water?

To convert hectopascals (hPa) to centimeters of water (cmH₂O), use the formula: cmH₂O = hPa × 1.019716213. Multiply the hectopascal value by 1.019716213. For example, 10 hPa equals 10.1972 cmH₂O.

How do I convert back from centimeters of water to hectopascals?

To convert in the reverse direction from centimeters of water (cmH₂O) to hectopascals (hPa), use the inverse formula: hPa = cmH₂O × 0.980665. Multiply the centimeter of water value by 0.980665 (1 cmH₂O = 0.980665 hPa).

What is the difference between hectopascal (hPa) and centimeter of water (cmH₂O)?

Both hectopascal and centimeter of water measure pressure. Hectopascal (hPa) is a unit in the Pressure measurement category. It is widely used in hectopascals (meteorology). Relative to the pressure base unit, 1 hPa equals 100 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).

How many PSI is in 1 bar?

1 bar equals approximately 14.5038 PSI. For car tires, 2.2 bar is roughly 32 PSI.