Kilopascal to mmH2O (4°C) Converter

Pressure Converter

29 units available

Decimals:

From

To

101.971621

1 kPa = 101.971621 mmH2O

Formula:

mmH2O = kPa × 101.9716212978

With your value: 1 kPa = 101.9716213 mmH2O

Other Kilopascal to mmH2O (4°C) conversions

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

Kilopascal to mmH2O (4°C) Conversion Table

Kilopascal (kPa)	mmH2O (4°C) (mmH2O)
0.5	50.985811
1	101.971621
2	203.943243
5	509.858106
10	1,019.716213
15	1,529.574319
20	2,039.432426
25	2,549.290532
50	5,098.581065
100	10,197.16213
250	25,492.905324
500	50,985.810649
1000	101,971.621298

mmH2O (4°C) to Kilopascal Conversion Table

mmH2O (4°C) (mmH2O)	Kilopascal (kPa)
0.5	0.004903
1	0.009807
2	0.019613
5	0.049033
10	0.098066
15	0.1471
20	0.196133
25	0.245166
50	0.490333
100	0.980665
250	2.451663
500	4.903325
1000	9.80665

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.

Kilopascal (kPa)

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

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

How to Convert Kilopascal to mmH2O (4°C)

To convert from Kilopascal (kPa) to mmH2O (4°C) (mmH2O), multiply the value by 101.9716212978.

Formula: mmH2O = kPa × 101.9716212978

Reverse: kPa = mmH2O × 0.00980665

Step-by-Step Example

Start with your value in Kilopascal. For example: 5 kPa
Multiply by the conversion factor: 5 x 101.9716212978
The result is: 509.858106 mmH2O

About Kilopascal

The kilopascal (kPa) is a unit of pressure and stress. One kilopascal equals 1000 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 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.

Frequently Asked Questions

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

There are exactly 101.9716212978 mmH2O (4°C) in 1 Kilopascal. This means the conversion factor from Kilopascal to mmH2O (4°C) is 101.9716212978.

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

The formula to convert Kilopascal to mmH2O (4°C) is: mmH2O = kPa × 101.9716212978. For example, to convert 10 Kilopascal to mmH2O (4°C), you would multiply 10 by 101.9716212978.

What is a Kilopascal?