Metal Weight Calculator

Inputs

View results
Cross-section profile of the stock.
Density comes from our cited material-density table.
Outside diameter of the round bar.
mm
Length of one piece.
m
Number of identical pieces.
pcs
Extra weight to plan for saw drops, trimming, defects, mill minimums and ordering allowance.
%
Optional user-entered price per kilogram. This is not a live commodity or supplier lookup.
$/kg

Results

Default result
Edit inputs
Total weight (W)
3.853 kg

Net calculated weight before overage.

Also computed

Order weight incl. overage (W_buy) 3.853 kg

No waste / ordering allowance added.

Estimated material cost (Cost) 0.00 $

Enter a price per kg for a cost estimate.

Weight each (w₁) 3.853 kg

Weight per length (w/L) 3.853 kg/m

Independent of length and quantity.

Cross-section area (A) 490.9 mm²

Volume each (V₁) 490.9 cm³

Method notes 5 notes
  • Weight = density × cross-section area × length. Mild / low-carbon steel (A36/1018) density = 7.85 g/cm³.
  • Cross-section of a round bar: A = π/4 · d².
  • Order weight = net total weight × (1 + waste / 100). Material cost uses the user-entered $/kg value, not a live commodity price.
  • Weight-per-length is independent of the length you enter.
  • Nominal density — real alloy weight varies slightly with composition and temper.

Powered by MachineCalcs ↗