How To Work Out How Many Miles Per Gallon My Car Does?

[SmithCraig896]

I want to work out how many miles per gallon my car does, but it all feels a bit difficult cos of getting petrol in litres, and my being rubbish at any sort of conversions.Is there any sort of forumula or online calculator thingy which I could use to help me?

Just did a 536 mile road trip in my 2003 Avensis 2.0 D4D. Cost of Diesel was £67.00, it took 46.56L at £1.439.

What is my car's MPG? Is it ny good?

Many thanks and apologies for stupid question.

[FROSTYBALLS]

Divide the litres figure by 4.546 to convert to gallons - 46.56/4.546 = 10.24 gallons

Divide distance travelled by fuel used(gallons) to produce consumption - 536/10.24 = 52.34 miles per gallon

[dervdave]

Just enter the miles and litres ;)

http://www.calculatenow.biz/conversions/consumption.php?fu=40.64&vol=lt&dt=370&dist=ml&fc=&ratio=mpg&submit=Convert#converter

[alan333]

There's 4.546 litres in a UK gallon, so your 46 litres is about 10 gallons. You got 536 miles from 10 gals = about 53. Fairly easy to remember if you always fill up when the guage is at the same level.