Weight calculator

Steel weight calculator

Choose the section and size, then enter pieces, kilograms or tonnes to see the nominal weight per metre, per piece and for the whole order.

Result

Catalog value

“Catalog value”: wherever the Ahan Asa catalog has the nominal weight of the exact item, that figure is used.

“Catalog value”: wherever the Ahan Asa catalog has the nominal weight of the exact item, that figure is used.
Rebar: weight per metre = d² ÷ 162 (d = diameter in mm) — ISO 6935-2 / INSO 3132.
Plate and sheet: weight = thickness (mm) × width (m) × length (m) × 7.85 kg/dm³ — EN 10029 / EN 10051.
Hollow sections: A = 2t(B + H − 2t) − (4 − π)(ro² − ri²) with the corner radii of the standard's Annex B, density 7850 kg/m³ — EN 10219-2.
Pipe: weight per metre = 0.0246615 × (D − t) × t, i.e. density 7850 kg/m³ — ASME B36.10M.
Angles: A = t(2b − t) without the corner radii (about 1% under the standard table), density 7850 kg/m³ — EN 10056-1.
Channels: A = 2·b·tf + (h − 2tf)·tw + 2(1 − π/4)r², density 7850 kg/m³ — EN 10365 dimensions.
IPE and IPN beams: only from the EN 10365 mass-per-metre table, never computed from dimensions.
Rounding: everything is calculated at full precision and only the displayed figure is rounded (half up): weight per metre to 3 decimals, per piece or sheet to 2, total weight to 1 and tonnes to 3. The number of pieces needed to reach a weight is rounded up to a whole number.
Nominal / theoretical weight — not the actual delivered weight or weighbridge settlement weight.