# Weight for Steel Bars, Pipe, and Tubing (lb)

Written by Jerry Ratzlaff on . Posted in Pipe

These formulas calculate the weight per foot for various pipe and structural shapes.

## Weight for Steel Bars, Pipe, and Tubing (lb) formulas

 $$\large{ W = 10.68 \; (D - t) \; t }$$ (pipe and round tubing) $$\large{ W = 13.60 \; [ (l + w) - t ] \; t }$$ (rectangular tube) $$\large{ W = 13.60 \; (D - t) \; t }$$ (square tube) $$\large{ W = 0.2836 \; t \; 144 }$$ (plate) $$\large{ W = 0.2225 \; d^2 \; t }$$ (plate circle) $$\large{ W = 0.2904 \; t \; 144 }$$ (sheet) $$\large{ W = 3.403 \; t \; w }$$ (flat bar) $$\large{ W = 2.945 \; d^2 }$$ (hexagon bar) $$\large{ W = 2.817 \; d^2 }$$ (octagon bar) $$\large{ W = 2.673 \; d^2 }$$ (round bar) $$\large{ W = 3.403 \; d^2 }$$ (square bar)

### Where:

$$\large{ W }$$ = pipe weight per foot (approximate)

$$\large{ d }$$ = diameter

$$\large{ l }$$ = length (long side)

$$\large{ D }$$ = pipe outside diameter

$$\large{ t }$$ = pipe thickness

$$\large{ w }$$ = width (short side)