Rebar Weight Calculator | Based on Diameter & Length

Rebar Weight Formula

Weight (kg) = π × (Diameter ÷ 2)2 × Length × Density × 0.001

* Diameter in mm, Length in meters, Density in kg/m³ (default: 7850)

Rebar Weight Calculator

This tool helps you calculate the weight of rebar based on diameter and length. The default density is 7850 kg/m³. Simply input the diameter and length to get the estimated weight in kilograms.


Example:

Diameter = 16 mm, Length = 12 m, Density = 7850

π × (0.016/2)² × 12 × 7850 = ~18.93 kg