# Math Help - from pounds per foot to kgs

1. ## from pounds per foot to kgs

Hello all.

I am stuck with this one, please can you help me convert 1,000 metres of material that weighs 9.3 pounds per foot in to kilos please?

2. Hi travellingscotsman.

$\mathrm{\frac{9.3\ lb}{1\ ft}\ =\ \frac{9.3\times0.454\ kg}{0.3048\ m}\ =\ 13.853\ kg\,m^{-1}}$

Now multiply this by the length of your material in metres to get its mass in kilos.