Converting to Miles Per Gallon

Subject: Converting to Miles Per Gallon
From: Kenneth Sax <nsxtasy@domain.elided>
Date: Fri, 19 Jul 1996 18:15:40 -0500

>Perhaps one of our resident mathematical wizards (Blazey, Childers, 
Shaffer)
>can figure out how to convert liters per 100 KiloMeters to Mile Per 
Gallon.

I'll try this one.

If you use x liters every 100 kM, your mpg is 234.7 divided by x.

This is how I calculated this number.  Let's say your car uses 12 liters 
every 100 kM.  A liter is 33.814 ounces, and a gallon is 128 ounces, so 12 
liters = 12 * 33.814 ounces = 405.77 ounces = 405.77 / 128 gallons = 3.17 
gallons.  A kilometer is .62 mile, so 100 kilometers = 62 miles.  Thus, if 
you get 12 liters every 100 kM, your mileage is 62 miles per 3.17 gallons, 
or 19.56 miles per gallon.

To summarize the conversion, if you use x liters every 100 kM, your mpg is 
234.7 divided by x.  (This number 234.7 comes from the above logic because 
it equals 62 * 128 / 33.814).

HTH

Ken Sax
nsxtasy@domain.elided
Windy City Chapter BMWCCA