Steel weight calculator

Find the weight of TMT bars from their diameter, length and number, using the standard d² ÷ 162 formula.

How it works

Weight per metre = d² ÷ 162, where d is the bar diameter in mm (steel density 7,850 kg/m³). Actual bars can differ slightly within the tolerance the standard allows, so use the supplier's weight for billing.

Always confirm measurements for a purchase or registration with official records.

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