Weight of a bag of compost

[kangoolari]

How much would a 75 litre bag of compost weigh?

Thanks

[Clanad]

I dind't do the math for conversion but a bag of compost here in the U.S. weighs 40 pounds and contains about 1.5 cubic feet...

[Toureman]

My local B&Q has the answer, above the 75 litre bags they have a sign that states "these bags are heavy"

[ugly_bob]

1.5 cubic feet is 42.5 litres.

Therefore 75 litre bag should weigh 70lbs or around 32kilos

[esbo]

Thanks for the answers, I see this question in a lot of places and many cannot give an answer at all basically saying 'it depends' but folk want and idea and that is what we get here. Else where it said divide by 2.4, which matches what I see here, however I had some compost here hand and put it into a measuring jug and there was about 0.52L however I compressed it down to 0.42L it weighted
0.238kg so then I divide by 0.42 and it gives a ratio of 0.56 so 1 litre weighs
0.75kg. Using the uncompressed weight I get a ratio on 0.45.
So from that you can basically divide the litres by 2 to get kilograms.
I would add that this was seed compost with is likely to me more dense than general purpose compost. Incidentally the ratio from the previous answers is
0.426 meaning you divide by 2.34.
As a rough guide I would say divide by 2 and add 1/5th or 20%
DIvide by 2 and add a bit is a good rough guide.

[esbo]

So in short for a rough answer divide the litres by 2 to get kilograms
Divide by 2.4 for a bit more accuracy. So it's a bit under half.
Half it and take 20% off. So 90 litres would be 45-9= 36Kg.

So it's like half then divide by 10 and x 2 and take that off.