Being overseas, my current and previous cars invariably express their parsimony via the computer as litres consumed per 100km driven. Is there a simple formula for recalculating fuel consumption into mpg? I get there eventually but I tie myself in knots, first converting the litres into gallons, then calculating how many gallons I've used over 62 miles... etc.
And is 8.6l/100km a decent figure for a BMW 335D?! TIA.
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I use 62.5/L*4.546 where L is your litres/100km figure.
So in your case, it is 62.5/8.6*4.546 which gives 33mpg.
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Perhaps a table - 1 mile per gallon = 286 litres per 100 km, as the former doubles the latter halves, so:
1 mpg = 286 l/100km
2 mpg = 143 l/100km
4 mpg = 72 l/100km
8 mpg = 36 l/100km
16 mpg = 18 l/100km
24 mpg = 12 l/100km
32 mpg = 9 l/100km
48 mpg = 6 l/100km
64 mpg = 4.5 l/100km
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Always use Microsoft Calculator Plus:
preview.tinyurl.com/4lxa3
In a classic case of Hutber's Law, the "new improved" calculator in Windows 7 doesn't appear to include the consumption conversions!
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From someone who did proper "O" level maths
Devide 272 ( he thinks) by the litre per 100km fig
= mpg
simples
Edited by dieseldogg on 15/11/2009 at 10:48
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>>From someone who did proper "O" level mathsDevide 272 ( he thinks) by the litre per 100km fig = mpg simples
The figure is 286 as per my table above.
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The magic number is actually 454.6 / 1.6093 , which comes to 282.5 .
And it works both ways. Divide this number by mpg to get litres/100km ; or the reverse.
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My ... cars invariably express their parsimony via the computer as litres consumed per 100km driven
British cars have a switchable option. Doesn't yours, or do continental models extend their parsimony as far as that?
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Use www.onlineconversion.com
Converts lots of other things too!
Edited by Mchenry on 15/11/2009 at 13:11
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Ok its a while since I worked it out , I was aware that the 272 fig was perhaps not correct.
cheers
M
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