Rebar Length Formula
Length (m) = Weight ÷ (π × (Diameter ÷ 2)2 × Density × 0.001)
* Diameter in mm, Weight in kg, Density in kg/m³ (default: 7850)
Rebar Length Calculator
Use this tool to estimate the length of a rebar when you know its diameter, weight, and density. This is useful for construction estimations or reusing materials. The standard steel density is 7850 kg/m³.
Example:
Diameter = 16 mm, Weight = 18.93 kg, Density = 7850
18.93 ÷ [π × (0.016/2)² × 7850] = ~12 m