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convert lb/ft3 to kN/m3

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  • convert lb/ft3 to kN/m3

    If I had 150lb/ft3 how would I convert to kN/m3? I found an online conversion value of 0.1571 but I don't know where that value comes from. Thanks guys and I love this web site!

  • #2
    Re: convert lb/ft3 to kN/m3

    The conversion factor would be:

    (pounds to kilonewtons) / (cubic feet to cubic meters)

    1 pound-force = 0.004 448 221 6 kilonewton
    1 cubic foot = 0.028 316 846 711 688 3 cubic meter

    0.0044482216 / 0.0283168467116883 = 0.1571

    150 lb/ft3 * 0.1571 = 23.565 kN/m3

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    • #3
      Re: convert lb/ft3 to kN/m3

      Thanks Robert. I wasn't dividing my pounds in N by 1000 k. I was multiplying it. Thank you very much for setting that up for me.

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      • #4
        Re: convert lb/ft3 to kN/m3

        the factor is .1570969382

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        • #5
          Re: Convertir la densidad de un material, 13.6 g/cm3, en lb/ft3.

          Convertir la densidad de un material, 13.6 g/cm3, en lb/ft3.

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          • #6
            Re: Convertir la densidad de un material, 13.6 g/cm3, en lb/ft3.

            Originally posted by Unregistered View Post
            Convertir la densidad de un material, 13.6 g/cm3, en lb/ft3.
            13.6 g/cm³ x 1 lbm/453.59237 g x (30.48 cm/1 ft)³ = 849 lbm/ft³

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            • #7
              Re: convert lb/ft3 to kN/m3

              150 lb/ft3 to kN/m3
              1 lb = 4.48N
              1 m = 3.28ft
              1 ft = 1/3.28 m
              now
              =(150*4.48N)/(1/3.28m)^3
              =150*4.48N*(3.28m)^3
              it will give = 23713 N/m3
              divide this by 1000 for kN/m3
              = 23713/1000
              = 23.71 kN/m3

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