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How to convert Hg to absolute pressure? View All

7 years ago - 1 month left to answer. - 2 responses - Report Abuse
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7 years ago


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What are the length measurements for your pressure measured using mercury (Hg), are they inches (in-Hg) or mm (mm-Hg)? Knowing this is critical since the scale for the height of the column of mercury would be different.

Once you know that you can go to the website Melvin suggested.

Alternately - to convert from gauge pressure to absolute pressure you simply add the standard pressure of one atmosphere.

29.925 in-Hg


760.9 mm-Hg

Niel Leon
Community Developer -

7 years ago


  0     0  does not provide engineering advice. The Ask@ service is a forum for members to exchange ideas relating to the world of engineering. We caution users not to accept any responses that they receive without further validation, and not to rely on any engineering advice that they may get from other members of the Ask@ forum. specifically disclaims any obligation to validate or verify any information posted within the Ask@ service. encourages users to seek the services of a professional engineer for any engineering advice they may require.