Quote:
Originally posted by John Ferris:
But you have bigger gallons, they could even be called "imperial"
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4.54 litres to a UK/Imperial Gallon.
3.8(?) litres to a US Gallon.
57mpg (imperial gallon) to km/l:
Divide 57 by 5 & multiply by 8 = 91.2km
Divide 91.2 by 4.54 = 20.09 = km/litre.
If working in US gallons, substitute 3.8 for 4.54.
mile to km: divide by 5 & multiply by 8
km to mile: divide by 8 & multiply by 5
With a bit of practice, you can convert mpg to km/l in your head whilst riding.
Point to note:
Most Europeans don't work with km/, instead they work on how many litres required to cover 100km: ??litres/100km.
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