Miles to the gallon?

[pussyfoot]

I've no idea where to put this so I thought i'd try here.

I've just bought a new (ish) car and I'm trying to work out how many miles it is doing to the gallon(miles to the litre means nothing to me). Being useless at maths I was hopeing someone could help me out.

I filled the tank to the brim, then drove 198 miles I then put in 24.47 litres of petrol which filled the tank again.

I think thats all thats needed.

Thank you
Angie

[factor-fiction]

Just use google converter. I recall a gallon is 4.5 litres approx.. So 24.47 litres is 27.47/4.5 gallons.
198 miles divided by teh result gives mpg.
However it's not an exact calculation as it assumes car was equally full each time you filled it

[rov1200]

Hardly the right equation.

If 1 gallon approx = 4.5 litres

then if you put in 45 litres of petrol it would be equal to 10 gallons.

[factor-fiction]

>"Hardly the right equation"

Er, what's wrong with the equation, rov1200
My equation said 24.47 litres to be 24.47/4.5= 5.44 gallons

That's in line with your result that 10 gallons = 45 litres

[Panic Button]

36.7 mpg

[Panic Button]

Multiply litres by 0.22 to get number of gallons.

[factor-fiction]

..and the result (using exact figure of 4.55 litres=1 gallon) is 36.8mpg
You can use this online calculator:
http://www.torquecars...uk-mpg-calculator.php

[TCL-MUMPING]

To convert litres to gallons, divide the litres by five and add 10% to the answer.

[Dodger666]

For the pedants amongst us: 1 gallon = 4.54609 litres