Help with fuel conversion

Hi Ron
Just to confirm is this correct
3000km x15 =45000 divided by 100 result being 450 litres
I hope
Thanks Greg

Does this help?

15Lt per 100km = 6.6km per litre.

So no matter what distance you want to go, just divide it by 6.6 and that will give you your estimated fuel use.

Yes, your 3000km = 450lt is correct...

3000km divided by 6.6 = 454.5 Lt....Close enough!

We get 6.6 like this...100km divided by 15lt used = 6.666666km per litre.

Herbal - don't confuse matters - the correct expression of fuel consumption in our metric system is litres/100km and Greg already has a grasp on this.

Miles per gallon may have been the correct expression in the imperial system but in the approved metric system it is not litres/km but litres/100km.

Logical or not that is the system.

Garry

Garry,
But, for someone use to the older system of distance per unit of fuel (as in miles per gallon) it might be easier to use the equivalent measure of km per litre.

IF Greg "already has a handle on" litres per 100km, then so be it, but the alternative measure of km/litre might be useful to others.

Don't knock it - someone will be grateful for the information.
John

km/l is a far more useful thing to know, especially in vehicles which don't have the estimated kms left in your tank. Makes it a simple process to calculate your fuel requirements for any distance and of course how many kms you should get from a tank full (give or take).

To make it less confusing for you Garry, I have made a quick reference list...

A = litres per 100km.
B = number to divide distance by to estimate fuel usage.

A - 10 then B - 10
A - 11 then B - 9.1
A - 12 then B - 8.3
A - 13 then B - 7.7
A - 14 then B - 7.1
A - 15 then B - 6.6
A - 16 then B - 6.2
A - 17 then B - 5.8
A - 18 then B - 5.5
A - 19 then B - 5.2
A - 20 then B - 5
A - 21 then B - 4.7
A - 22 then B - 4.5
A - 23 then B - 4.3
A - 24 then B - 4.15
A - 25 then B - 4

If you are getting better than 10lt per 100km then you probably don't care how much you use on a given trip.

If you are using more than 25lt per 100km...you probably gave up caring a long time ago, and just think of it as using the kids inheritance.

The most useful measure is how many kilometres can I go for the amount of fuel I’m carrying.

The equation is straight forward and can be calculated at the time of refuelling.

Distance travelled / fuel used = kilometres per litre

If you know the litres / per 100 kilometres the equation to work out kilometres per litre:

100 / litres per 100 kilometres = kilometres per litre

/ = divide

Hey people - mock and belittle as much as you like but just highlighting the Aussie standard is l/100km, the OP clearly understands this and his question had been answered and people come along using a system that is not basically used in most areas.

This system has been around for a long and is what most people use but maybe not people on here who maybe need to get with the program.

The only reason they went for litres/100km was to remove the decimal point eg 15l/100km = 6.7km/l .

Don't get me started on the klom-eh-ta V kill-o-metre argument.

For my part Garry, no mocking and belittling offered or intended and I'm pressed to see any in this thread, some useful comments though.

Whether presented as Litres/100klm or klms/Litre the aim is to simply work out how far you can go with what you have in the tank, surely? Noting that a litres/100klm requires an additional calculation/conversion, but as you say, perhaps it is the standardised way of presenting it.

But, each to their own on this stuff and whatever works best, is simply - best for the individual.

Try the Go See Australia website they have a great fuel calculator that converts useage to both km to ltr an the old mpg
You have to start with a full tank and fill right up at each fill point.
I have been using it for years
PeterM Qld

Double click on xls.

And 15 posts to explain and clarify it...... lucky it wasn't something technical.

No mate !

I took elective auto mechanics in high school...But I ended up teaching the teacher...I remember his first lesson, when I had to explain that he was wrong and that one should wet the car first before washing it...Thinking about it, I also remember his second lesson, when I corrected him by advising that 1000 grit was not the finest W/D paper...Actually, thinking about it, I remember the day I took over the class to explain the difference between a 2 stroke and 4 stroke because the teacher could not explain how the fuel got into the chamber of a two stroke engine...

But then again...I also remember going to the Head Master and asking why Australian history was not a class...and his answer was "because you are expected to already know".

Some are just a bit more resistant to change than others.