In that list, the two logical choices are millibars (same as hectopascals) and
kilopascals. In it's metric option, the National Weather Service uses
millibars(hectopascals) as do many other countries (gives numbers around 1000)
while Environment Canada uses kilopascals (numbers around 100). Th
Unfortunately the motor industry is one of the big bastions of imperial
units in the UK. I believe that they very much like the idea of Ireland
having km/h and the UK having mph as this enables them to segment the market
making it unattractive for British motorists to buy cars outside the UK,
enabl
Hi David,
If you are measuring atmospheric pressure, kPa is the most appropriate SI
measure you will get numbers that are approximately 100, if you choose Pa you
will get numbers of the order of 100,000.
Atmospheres are a historic uni of pressure and is the pressure associated with
a "st
Bars and millibars are metric (1 bar or 1000 mb equal one atmosphere. SI
changed to Pascal as the unit of pressure, you choose the prefix to suit the
value, aircraft use hPa because it’s the same number of digits as millibars,
but kPa is fine for most atmospheric pressure, this is what the Canad
