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Bundles of TMT bars stacked in the yard, cut ends to camera

— Free tool

TMT Bar Weight Calculator

Steel is sold by weight, not by count. Enter the diameter, bar length and quantity to get the nominal weight your invoice will be built on.

Bundles of TMT bars stacked in the yard, cut ends to camera

TMT bar weight

Nominal mass per IS 1786 — weight (kg/m) = d² ÷ 162.

—Per metre
—Per bar
—Total weight

TMT bar weight chart — IS 1786

Reference
Diameterkg per metrekg per 12 m barBars per bundleBundle weight (kg)
6 mm0.2222.6620 bars53.3
8 mm0.3954.7410 bars47.4
10 mm0.6177.407 bars51.8
12 mm0.88810.665 bars53.3
16 mm1.58018.963 bars56.9
20 mm2.47029.642 bars59.3
25 mm3.85046.20Loose—
28 mm4.83057.96Loose—
32 mm6.31075.72Loose—
36 mm7.99095.88Loose—
40 mm9.860118.32Loose—

Use this to sanity-check any quotation.

Close-up of steel reinforcement bars on a construction site

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