Weight calculators

Rebar weight

Ribbed and plain bar by diameter and bar length. Results in kilograms. Density defaults suit carbon steel mill products.

Output
kg
Inputs
mm · m

Inputs

Indicative · not a mill cert

Formula

W = (π × d² ÷ 4) × L × ρ ÷ 1000
  • • d in mm, L in m, ρ in g/cm³ → W in kg
  • • For carbon steel that is about d² ÷ 162 kg per metre
  • • Same relation for ribbed and plain bar