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Conversion factors between psi and bar

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JC Uknz 1	19/02/2015 06:37:04
54 forum posts	Confused by what I find on my web search There surely must be an easy factor to multiply bar to find equivalent psi or divide psi to find bar?
Paul Lousick	19/02/2015 06:38:55
2276 forum posts 801 photos	1 bar (or 1 atmosphere) = 14.5037738007 psi Edited By Paul Lousick on 19/02/2015 06:40:13 Edited By Paul Lousick on 19/02/2015 06:41:09
David Jupp	19/02/2015 08:25:37
978 forum posts 26 photos	Though in many cases it won't be significant, 1 bar is not quite equal to 1 atmosphere (either standard or technical). Paul's figure for bar to psi is consistent with those in the data sources I use most often.
Michael Gilligan	19/02/2015 08:55:59
23121 forum posts 1360 photos	As is so often the case, it's worth looking at Wikipedia. ... Not guaranteed accurate, but a very good place to start. MichaelG.
Martin Kyte	19/02/2015 08:57:48
3445 forum posts 62 photos	Try http://www.onlineconversion.com/pressure.htm regards Martin
RJW	19/02/2015 08:58:57
343 forum posts 36 photos	1 Bar = 14.5 psi, 1 Atmosphere = 14.7 psi (at sea level) For ease of conversion use 15 per BAR as a conversion factor unless you need absolute accuracy, in which case use sea level calculation factored for your altitude referenced to sea level. John.
Martin Kyte	19/02/2015 08:59:29
3445 forum posts 62 photos	Sorry LINK Martin
Bill Dawes	19/02/2015 14:46:42
605 forum posts	Having worked in the industrial fan industry all my (working) life, I use 101325 Pa for standard atmospheric pressure (BS EN ISO 5801 standard) this approximates to the more familiar unit to us oldies as a shade under 14.7 psiA. For purposes of a quick conversion to get a handle on pressure a figure of 15 psi is also useful to remember as posted above. To those unfamiliar with pressures remember to differentiate between absolute and gauge pressures. The figures above are absolute pressures. Bill D.

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