Expert Guide

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Steel / Rebar Calculators

Steel Bar Weight Calculator – Structural Steel

Quality Inspector

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Calculate the weight of any round steel bar. Essential for structural engineers and contractors for site material estimation.

📐 Formula & Method

Uses the standard D²/162 formula to find unit weight, then multiplies by the total running length.

Weight (kg) = (D² / 162) × Length

📋 Worked Example

For 1 bar of 16mm (12m long):
• Unit Weight = 1.58 kg/m
• Total = 1.58 × 12 = 18.96 kg

❓ Frequently Asked Questions

Is the formula D²/162 accurate?

Yes, it is the standard empirical formula used globally in construction for estimating steel weight.