KPA to PSI conversion table / chart Accuracy ??
06-26-2008, 12:50 PM
#1
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KPA to PSI conversion table / chart Accuracy ??
here is a KPA to PSI conversion table or chart
does anyone know how accurate this is ? thanks
does anyone know how accurate this is ? thanks
06-26-2008, 12:57 PM
#3
Honda-Tech Member
Re: KPA to PSI conversion table / chart Accuracy ?? (DaveF)
i dont think any of that is right, unless those are the numbers above atmosperic pressure. for example 100kpa = 14.5038psi which is just under 1atm (14.70psi)
what is that chart for?
what is that chart for?
06-26-2008, 01:21 PM
#7
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Re: KPA to PSI conversion table / chart Accuracy ?? (dpetro1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dpetro1 »</TD></TR><TR><TD CLASS="quote">i dont think any of that is right, unless those are the numbers above atmosperic pressure. for example 100kpa = 14.5038psi which is just under 1atm (14.70psi)
what is that chart for?</TD></TR></TABLE>
the way the engine management system we use reads, it will read 100 kpa with the engine off or 0 vacum
the chart is for reference
what is that chart for?</TD></TR></TABLE>
the way the engine management system we use reads, it will read 100 kpa with the engine off or 0 vacum
the chart is for reference
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06-26-2008, 08:54 PM
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Re: KPA to PSI conversion table / chart Accuracy ?? (DaveF)
The problem is that he apparently wants it to reference his pressure gauge to the sheet for a car, not strictly absolute pressure reference.
I have to point out the sheet is wrong. On a gauge, 1atm~14.7psi~101kpa. So I think at 300kpa (200kpa above atm), you'd have 29.2psi on the gauge (14.5+14.7psi). At 500kpa (400kpa above atm), I think its 58.2psi. The main issue is using absolute and gauge pressure scales. I think that scale ended up using 14.7psi as 100kpa equiv, not 14.5psi, due to 1 atm being 14.7psi.
I've always hated going using gauge measurements, I prefer absolute. Thats why I sorta like kPa more now.
I have to point out the sheet is wrong. On a gauge, 1atm~14.7psi~101kpa. So I think at 300kpa (200kpa above atm), you'd have 29.2psi on the gauge (14.5+14.7psi). At 500kpa (400kpa above atm), I think its 58.2psi. The main issue is using absolute and gauge pressure scales. I think that scale ended up using 14.7psi as 100kpa equiv, not 14.5psi, due to 1 atm being 14.7psi.
I've always hated going using gauge measurements, I prefer absolute. Thats why I sorta like kPa more now.
06-27-2008, 03:09 AM
#11
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Re: KPA to PSI conversion table / chart Accuracy ?? (wHOAlly)
its close though, eh ? it seems some of the digits are upping by .8 and some by .7,
when i look for conversion formula's 1psi =6.8948 kpa = 0.06805 atm, using that logic, would mean the conversion table should be off by a good bit ?
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google search #3
when i look for conversion formula's 1psi =6.8948 kpa = 0.06805 atm, using that logic, would mean the conversion table should be off by a good bit ?
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google search #3
06-27-2008, 03:49 PM
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100mbar = 10kpa
In google, in the search engine type "X mbar to psi" and it will convert whatever you need. Then just divide by 10. If you need to reference it to a gauge pressure, just subtract it from 101.35kpa. Negative will be vacuum and positive will be positive(obviously).
In google, in the search engine type "X mbar to psi" and it will convert whatever you need. Then just divide by 10. If you need to reference it to a gauge pressure, just subtract it from 101.35kpa. Negative will be vacuum and positive will be positive(obviously).
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