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Maths - Convert litres/100 miles to mpg

Just did a 1000 miles round Devon and Cornwall the last two weeks, and the trip computer says i got 8.9 litres/100 miles. Now, i know 4.55 would be 100mpg, so 9.1 is 50mpg, but i'm stuck on the exact calculations

8.9 litres = 1.9577255 Imperial gallons
100 / 1.9577255 = 51.0796841

8.9 litres = 1.958 Imperial gallons as per convert.web-max.ca/ind…e=2
so 100 miles per 1.958 gallons = 51.07 miles per gallon (1.959 gallons @ 51.07 mpg = 100 miles travelled).
Not a bad return I guess you're driving a diesel.
Grr beaten to it lol

doh !!

Original Poster

Cheers guys, it is indeed a diesel. a 2.0 Mazda 6 :thumbsup:

I see it is very simple conversion when you know how to do it :-D

How does this compare to the 200 miles(if I'm lucky) I get from £50 in my Impreza :shock::w00t:

i just got 25 mpg towing a caravan for 600 miles (return jurney) in a diesel, that doesnt sound to good

jtx;2759320

How does this compare to the 200 miles(if I'm lucky) I get from £50 in my … How does this compare to the 200 miles(if I'm lucky) I get from £50 in my Impreza :shock::w00t:

mines the same lol! What reg is yours? Mine's an N Reg Jap Import Sti :thumbsup:

autolesbona;2759467

mines the same lol! What reg is yours? Mine's an N Reg Jap Import Sti … mines the same lol! What reg is yours? Mine's an N Reg Jap Import Sti :thumbsup:

It's a W reg uk turbo with a few mods, juicy but worth it:thumbsup:

jtx;2759320

How does this compare to the 200 miles(if I'm lucky) I get from £50 in my … How does this compare to the 200 miles(if I'm lucky) I get from £50 in my Impreza :shock::w00t:

23 ish mpg at 126.9 pence per l

Dont ask me I got the last one wrong :oops:

ding;2759334

i just got 25 mpg towing a caravan for 600 miles (return jurney) in a … i just got 25 mpg towing a caravan for 600 miles (return jurney) in a diesel, that doesnt sound to good

Your towing a caravan that weighs at least a ton, PLUS the shame of it is creating massive wind resistance.....

by the way, I drive a diesel and it only costs me 20p a litre to run