How many of these for 0.1 cubic metres

[slider09]

Hi all

Need just under 0.1 cubic metres of concrete for footings for a small railway sleeper raised bed.

For ease I was looking at these premixed bags.

But how many bags would I need?

Thank you

 

[John D v2.0]

Of the top of my head 1 ton is about 0.5m³ so you would need about 200kg or 8 bags.
Should be calculators online though.

 

[slider09]

Thanks, found one.

208 kg required.

 

[John D v2.0]

if you're planning to mix all that with a shovel and board, I hope you're fit!