Millimeter of Water Column to Kilopascal Converter

Convert millimeters of water column to kilopascals with our free online pressure converter.

Quick Answer

1 Millimeter of Water Column = 0.009807 kilopascals

Formula: Millimeter of Water Column × conversion factor = Kilopascal

Use the calculator below for instant, accurate conversions.

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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: November 2025|Reviewed by: Sam Mathew, Software Engineer

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How to Use the Millimeter of Water Column to Kilopascal Calculator:

Enter the value you want to convert in the 'From' field (Millimeter of Water Column).
The converted value in Kilopascal will appear automatically in the 'To' field.
Use the dropdown menus to select different units within the Pressure category.
Click the swap button (⇌) to reverse the conversion direction.

How to Convert Millimeter of Water Column to Kilopascal: Step-by-Step Guide

Converting Millimeter of Water Column to Kilopascal involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

kPa = mmH₂O × 0.00980665

Example Calculation:

1 mmH₂O = 0.009807 kPa

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

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Conversion Table: Millimeter of Water Column to Kilopascal

Millimeter of Water Column (mmH₂O)	Kilopascal (kPa)
0.5	0.005
1	0.01
1.5	0.015
2	0.02
5	0.049
10	0.098
25	0.245
50	0.49
100	0.981
250	2.452
500	4.903
1,000	9.807

How do I convert Millimeter of Water Column to Kilopascal?

To convert Millimeter of Water Column to Kilopascal, enter the value in Millimeter of Water Column in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our pressure converter page to convert between other units in this category.

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What is the conversion factor from Millimeter of Water Column to Kilopascal?

The conversion factor depends on the specific relationship between Millimeter of Water Column and Kilopascal. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Kilopascal back to Millimeter of Water Column?

Yes! You can easily convert Kilopascal back to Millimeter of Water Column by using the swap button (⇌) in the calculator above, or by visiting our Kilopascal to Millimeter of Water Column converter page. You can also explore other pressure conversions on our category page.

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What are common uses for Millimeter of Water Column and Kilopascal?

Millimeter of Water Column and Kilopascal are both standard units used in pressure measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our pressure converter for more conversion options.

For more pressure conversion questions, visit our FAQ page or explore our conversion guides.