Check my maths please

[Bonzo]

Would any of you maths boffins out there be kind enough to double check my calculations for me :)

Not my strongest of subjects at school .... Too busy winding up the teachers & showing off to girls :D :D

The section of sump I recently removed was approximately: 240mm long X 175mm wide 18mm deep.

I worked this out to 75600 mm2

This in turn coverts into .756 litres lost oil capacity ( 3/4 L ) Right !!??

Personally would have guessed about 1/2 litre .... Perhaps i'll have to provide some extra capacity after all :rolleyes:

[Big Vern]

Hi Ronnie,

Basically yes! 1000cm3 = 1 litre
so 24cm X 17.5cm X 1.8cm = 756cm3
therefore 756cm3 = 0.756 litre

Cheers BV.

[Tatey]

I concur, although you missed a 0 from your volume and shouldnt it be mm^3 not mm^2 :D :p

Did the bit you cut off come off in one bit without putting any holes in it? If for a little test, could you not just fill it up with water from a litre bottle and see how much you have left?

[Bonzo]

Thanks BV

Not quite as stupid as I thought .... Mind you I did not have a clue as to how to convert square mm into Litres though, had to use an online converter for that :o :o :D :D

[Bonzo]

I concur, although you missed a 0 from your volume and shouldnt it be mm^3 not mm^2 :D :p

Did the bit you cut off come off in one bit without putting any holes in it? If for a little test, could you not just fill it up with water from a litre bottle and see how much you have left?

Well I did say, me pay no attention at school :o

Filling the piece I cut out would be difficult .... Just a flat strip of alloy now :D

Thanks Tatey

[alga]

My tip is to convert the input units to whatever you would like to get. A litre is a cubic decimetre, so you will get the result in litres if you convert the inputs to decimetres:

2.4 * 1.75 * 0.18 = 0.756

This way you don't have to think about how many cubic millimetres there are in 1 litre.

Similarly, if I know a cubic metre of steel weighs 7800 kg, and want to calculate how much a metre length of 25x25x1.5 tube weighs, I convert the lengths to metres:

(0.025^2 - (0.025 - 2 * 0.0015)^2) * 1 * 7800 = 1.0998

[Bonzo]

My tip is to convert the input units to whatever you would like to get. A litre is a cubic decimetre, so you will get the result in litres if you convert the inputs to decimetres:

2.4 * 1.75 * 0.18 = 0.756

This way you don't have to think about how many cubic millimetres there are in 1 litre.

Similarly, if I know a cubic metre of steel weighs 7800 kg, and want to calculate how much a metre length of 25x25x1.5 tube weighs, I convert the lengths to metres:

(0.025^2 - (0.025 - 2 * 0.0015)^2) * 1 * 7800 = 1.0998

I knew that !! :o :o Not

Sounds easy when it is put like that :)