CONSTRUCTION TOOL

Rebar Weight Calculator

Estimate steel reinforcing bar weight from diameter, length and quantity.

FREE ONLINE TOOL

Diameter (mm)Length per bar (m)Number of bars

Total mass (kg)

53.268845

Mass per metre (kg/m)

0.887814

kg = π / 4 × (diameter / 1000)² × length × quantity × 7850

Nominal circular section and steel density 7850 kg/m³; actual ribbed bar weights may differ within tolerances.

STEP BY STEP

How to use rebar weight calculator

IN PRACTICE

10 bars × 6 m × 12 mm ≈ 53.27 kg.

GOOD TO KNOW

Nominal circular section and steel density 7850 kg/m³; actual ribbed bar weights may differ within tolerances.