lead density is 0.41 pounds/cubic inch
1.68 x 0.41 = 0.688 pounds
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According to my calculations, 2.44 in3 of lead would weigh one pound.
l= .5 in d= .312 in dxdx .7854 x .5 = .0382269 cubic inches or .0000221 cubic feet multiplied by the known weight of lead (712 lbs/cubic foot) .0157352 pound lead cylinder
244.5 (rounded)
The weight (not mass) is 69.05 pound weight.
First find the volume, then multiply by the density of lead. Density of lead = 0.41 pounds per cubic inch.Volume = (area of base) * (length) = (pi * r2) * (length) = 3.14 * (0.75 in / 2)2 * (3 in) = 1.32 in3. Then (0.41 lb / in3) * (1.32 in3) = 0.54 pounds, or 8.6 ounces