mmH2O (4°C) to Gigapascal Converter

Pressure Converter

29 units available

Decimals:

From

To

9.806650e-9

1 mmH2O = 9.806650e-9 GPa

Formula:

GPa = mmH2O × 9.806650e-9

With your value: 1 mmH2O = 9.806650e-9 GPa

Other mmH2O (4°C) to Gigapascal conversions

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

mmH2O (4°C) to Gigapascal Conversion Table

mmH2O (4°C) (mmH2O)	Gigapascal (GPa)
0.5	4.903325e-9
1	9.806650e-9
2	1.961330e-8
5	4.903325e-8
10	9.806650e-8
15	1.470998e-7
20	1.961330e-7
25	2.451662e-7
50	4.903325e-7
100	9.806650e-7
250	2.451663e-6
500	4.903325e-6
1000	9.806650e-6

Gigapascal to mmH2O (4°C) Conversion Table

Gigapascal (GPa)	mmH2O (4°C) (mmH2O)
0.5	50,985,810.648896
1	101,971,621.297793
2	203,943,242.595586
5	509,858,106.488964
10	1,019,716,212.977928
15	1,529,574,319.466893
20	2,039,432,425.955857
25	2,549,290,532.444821
50	5,098,581,064.889642
100	10,197,162,129.779284
250	25,492,905,324.448208
500	50,985,810,648.896416
1000	101,971,621,297.79283

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

Gigapascal (GPa)

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 Gigapascal

To convert from mmH2O (4°C) (mmH2O) to Gigapascal (GPa), multiply the value by 9.806650e-9.

Formula: GPa = mmH2O × 9.806650e-9

Reverse: mmH2O = GPa × 101,971,621.29779284

Step-by-Step Example

Start with your value in mmH2O (4°C). For example: 5 mmH2O
Multiply by the conversion factor: 5 x 9.806650e-9
The result is: 4.903325e-8 GPa

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 Gigapascal

The gigapascal (GPa) is a unit of pressure and stress. One gigapascal equals 1.000000 × 10^+9 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 Gigapascal are in 1 mmH2O (4°C)?

There are exactly 9.806650e-9 Gigapascal in 1 mmH2O (4°C). This means the conversion factor from mmH2O (4°C) to Gigapascal is 9.806650e-9.

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

The formula to convert mmH2O (4°C) to Gigapascal is: GPa = mmH2O × 9.806650e-9. For example, to convert 10 mmH2O (4°C) to Gigapascal, you would multiply 10 by 9.806650e-9.

What is a mmH2O (4°C)?