Square bar weight calculator (kg/m)
Enter the dimensions in mm to get the weight per metre and the total weight for any length and number of pieces, in steel, stainless steel or aluminium.
Weight per metre
78.5 kg/m
Total weight
471 kg
Density: 7.85 kg/dm³
Formula and example
Cross-section area A = a² (mm). Weight per metre = A × density ÷ 1000, with the density in kg/dm³.
a²
Example: 20 mm in steel weighs 3.14 kg/m, so a 6 m length weighs 18.84 kg.
Carbon steel 7.85 kg/dm³, stainless steel (AISI 304) 7.93 kg/dm³, aluminium 2.70 kg/dm³. Delivered weights can differ from calculated ones within the mass tolerance of the product standard.
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