100 millitorrs equals how many inches of mercury?

fie-ga,

Thanks for your question.

According to the conversion chart available at:


http://www.highvacpumps.com/engineering/formulas.html
FORMULA & FACTORS


1 mm Hg   = 100 millitorr (microns) = 10-¹ torr


In other words, 100 milliTorrs is 1 mm of mercury.

Since 1 mm is 0.039 inches:


://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLD,GGLD:2005-04,GGLD:en&q=mm+in+inches


then 1 milliTorr = 0.039 inches.


Let me know if there's anything else you need on this.


pafalafa-ga


search strategy -- Google search on [ millitorr ]

---

Clarification of Answer by pafalafa-ga on 29 Mar 2006 05:48 PST

P.S.


Ooops...a bit of a mistake, I'm afraid.

The answer is .0039 inches of Hg, since 100 millitorr is 0.1 mm Hg
(not 1 mm, as I said originally).


There's a very nice conversion tool, that you can see here:


http://www.sengpielaudio.com/calculator-pressureunits.htm
Conversion of pressure or stress units 



Find the millitorr box (about 1/3 of the way down the page) and enter
a value, such as 100 millitorr.

The other boxes on the page will instantly show you the conversion for
this value.

Sure enough, 100 millitorr =  0.0039370072 Inch of mercury (Hg) (32 °F)


Cool, eh?

Sorry for any confusion.

paf

I'm still confused, i've never heard of a TORR!

That's okay...I never heard of a KEMLO!

Since Torricelli invented the barometer, it is not surprising that
there is a unit of pressure named after him. One torr is equal to 1 mm
of mercury, i.e. the pressure underneath a column of mercury with a
height of 1 mm. Atmospheric pressure is about 760 mm, or equivalently,
760 torr.