mmH2O (4°C) to cmHg (0°C) Converter

Pressure Converter

29 units available

Decimals:

From

To

0.007356

1 mmH2O = 0.007356 cmHg

Formula:

cmHg = mmH2O × 0.0073555914

With your value: 1 mmH2O = 0.00735559 cmHg

Other mmH2O (4°C) to cmHg (0°C) conversions

2 mmH2O to cmHg 3 mmH2O to cmHg 4 mmH2O to cmHg 5 mmH2O to cmHg 6 mmH2O to cmHg 7 mmH2O to cmHg 8 mmH2O to cmHg

mmH2O (4°C) to cmHg (0°C) Conversion Table

mmH2O (4°C) (mmH2O)	cmHg (0°C) (cmHg)
0.5	0.003678
1	0.007356
2	0.014711
5	0.036778
10	0.073556
15	0.110334
20	0.147112
25	0.18389
50	0.36778
100	0.735559
250	1.838898
500	3.677796
1000	7.355591

cmHg (0°C) to mmH2O (4°C) Conversion Table

cmHg (0°C) (cmHg)	mmH2O (4°C) (mmH2O)
0.5	67.9755
1	135.951
2	271.902
5	679.755
10	1,359.51
15	2,039.265
20	2,719.02
25	3,398.775
50	6,797.55
100	13,595.1
250	33,987.75
500	67,975.5
1000	135,951

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

mmH2O (4°C) (mmH2O)

Pressure

Exact conversion

Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

cmHg (0°C) (cmHg)

Pressure

Exact conversion

Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert mmH2O (4°C) to cmHg (0°C)

To convert from mmH2O (4°C) (mmH2O) to cmHg (0°C) (cmHg), multiply the value by 0.0073555914.

Formula: cmHg = mmH2O × 0.0073555914

Reverse: mmH2O = cmHg × 135.951

Step-by-Step Example

Start with your value in mmH2O (4°C). For example: 5 mmH2O
Multiply by the conversion factor: 5 x 0.0073555914
The result is: 0.036778 cmHg

About mmH2O (4°C)

The mmh2o (4°c) (mmH2O) is a unit of pressure and stress. One mmh2o (4°c) equals 9.80665 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: pressure calculations, engineering and science, education.

About cmHg (0°C)

The cmhg (0°c) (cmHg) is a unit of pressure and stress. One cmhg (0°c) equals 1333.223874 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: pressure calculations, engineering and science, education.

Frequently Asked Questions

How many cmHg (0°C) are in 1 mmH2O (4°C)?

There are exactly 0.0073555914 cmHg (0°C) in 1 mmH2O (4°C). This means the conversion factor from mmH2O (4°C) to cmHg (0°C) is 0.0073555914.

What is the formula to convert mmH2O (4°C) to cmHg (0°C)?

The formula to convert mmH2O (4°C) to cmHg (0°C) is: cmHg = mmH2O × 0.0073555914. For example, to convert 10 mmH2O (4°C) to cmHg (0°C), you would multiply 10 by 0.0073555914.

What is a mmH2O (4°C)?