Bar to cmH2O (4°C) Converter

Pressure Converter

29 units available

Decimals:

From

To

1,019.716213

1 bar = 1,019.716213 cmH2O

Formula:

cmH2O = bar × 1,019.7162129779

With your value: 1 bar = 1,019.71621298 cmH2O

Other Bar to cmH2O (4°C) conversions

2 bar to cmH2O 3 bar to cmH2O 4 bar to cmH2O 5 bar to cmH2O 6 bar to cmH2O 7 bar to cmH2O 8 bar to cmH2O

Bar to cmH2O (4°C) Conversion Table

Bar (bar)	cmH2O (4°C) (cmH2O)
0.5	509.858106
1	1,019.716213
2	2,039.432426
5	5,098.581065
10	10,197.16213
15	15,295.743195
20	20,394.32426
25	25,492.905324
50	50,985.810649
100	101,971.621298
250	254,929.053244
500	509,858.106489
1000	1,019,716.212978

cmH2O (4°C) to Bar Conversion Table

cmH2O (4°C) (cmH2O)	Bar (bar)
0.5	0.00049
1	0.000981
2	0.001961
5	0.004903
10	0.009807
15	0.01471
20	0.019613
25	0.024517
50	0.049033
100	0.098067
250	0.245166
500	0.490333
1000	0.980665

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.

Bar (bar)

Pressure

Exact conversion

1 bar = 100 000 Pa exactly.

Source: Units accepted for use with the SI, SI Brochure Table 8

Bureau International des Poids et Mesures · Reviewed 2026-07-01

cmH2O (4°C) (cmH2O)

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 Bar to cmH2O (4°C)

To convert from Bar (bar) to cmH2O (4°C) (cmH2O), multiply the value by 1,019.7162129779.

Formula: cmH2O = bar × 1,019.7162129779

Reverse: bar = cmH2O × 0.000980665

Step-by-Step Example

Start with your value in Bar. For example: 5 bar
Multiply by the conversion factor: 5 x 1,019.7162129779
The result is: 5,098.581065 cmH2O

About Bar

The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.

Common uses: tire pressure, industrial, meteorology.

About cmH2O (4°C)

The cmh2o (4°c) (cmH2O) is a unit of pressure and stress. One cmh2o (4°c) equals 98.0665 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 cmH2O (4°C) are in 1 Bar?

There are exactly 1,019.7162129779 cmH2O (4°C) in 1 Bar. This means the conversion factor from Bar to cmH2O (4°C) is 1,019.7162129779.

What is the formula to convert Bar to cmH2O (4°C)?

The formula to convert Bar to cmH2O (4°C) is: cmH2O = bar × 1,019.7162129779. For example, to convert 10 Bar to cmH2O (4°C), you would multiply 10 by 1,019.7162129779.

What is a Bar?