TMT Steel Bar Weight – 8mm, 10mm, 12mm & 16mm steel
TMT Steel Bar Weight – 8mm, 10mm, 12mm & 16mm steel bars is a crucial factor in construction planning, cost estimation, and structural safety. Builders, engineers, and contractors rely on accurate steel bar weight calculations to determine material requirements, transportation load, and overall project budgeting. Since TMT bars are widely used in residential, commercial, and infrastructure projects, understanding their standard weights helps avoid material wastage and ensures compliance with design specifications.
The weight of TMT steel bars varies according to their diameter, length, and density of steel, making size selection extremely important for load-bearing structures. Common diameters such as 8mm, 10mm, 12mm, and 16mm are used for different construction purposes, ranging from slabs and beams to columns and foundations. Knowing the exact weight per meter of these TMT Steel Bar Weight – 8mm, 10mm, 12mm & 16mm steel ensures better planning, accurate billing, and stronger, more durable construction outcomes.
TMT Steel Bar Weight – 8mm, 10mm, 12mm & 16mm Steel Bars
Here are some of the important charts and formulas for TMT steel bars weight that can be a helpful guide for any construction from local level to corporate level.
TMT Steel Bar Weight Calculation Formula
| Parameter | Formula |
| Weight per meter (kg) | D² ÷ 162 |
| D | Diameter of bar in mm |
TMT Steel Bar Weight Chart (Per Meter & 12 Meter Length)
| Bar Diameter | Weight per Meter (kg) | Weight of 12 Meter Bar (kg) |
| 8 mm | 0.395 | 4.74 |
| 10 mm | 0.617 | 7.40 |
| 12 mm | 0.888 | 10.66 |
| 16 mm | 1.580 | 18.96 |
TMT Steel Bar Weight Per Bundle (Approx.)
| Bar Diameter | Approx. Bars per Ton | Approx. Weight per Bar (kg) |
| 8 mm | 211 | 4.74 |
| 10 mm | 135 | 7.40 |
| 12 mm | 94 | 10.66 |
| 16 mm | 53 | 18.96 |
Quick Reference Table – Common TMT Bar Sizes
| Diameter (mm) | Area of Use | Standard Length |
| 8 mm | Slabs, Rings | 12 meters |
| 10 mm | Slabs, Beams | 12 meters |
| 12 mm | Beams, Columns | 12 meters |
| 16 mm | Columns, Foundations | 12 meters |
8mm Steel Rod Weight
- The weight of a single 8mm TMT steel rod is approximately 4.6 kg per 12-meter length.
- Around 10 steel rods are bundled together, forming a bundle weighing nearly 45–46 kg.
- One metric ton of 8mm steel rods consists of approximately 22 bundles.
- 8mm TMT steel rods are commonly used as load-bearing reinforcement in residential construction.
- These rods are widely applied in slabs, staircases, and secondary structural elements.
10mm Steel Rod Weight
- A single 10mm steel rod weighs around 7.1 kg for a standard 12-meter length.
- Typically, 7 rods form one bundle, with a total bundle weight of 49–50 kg.
- One ton of 10mm steel rods contains approximately 22 bundles.
- 10mm TMT rods are extensively used in the construction of lintels and roof slabs.
- They provide a balanced combination of strength, flexibility, and load distribution.
12mm Steel Rod Weight
- The weight of one 12mm steel rod is approximately 10.4 kg per rod.
- Usually, 5 steel rods are combined into a bundle, weighing around 51–52 kg.
- One metric ton of 12mm steel rods equals roughly 20 bundles.
- These rods are mainly utilized in the construction of beams and structural roof supports.
- 12mm TMT steel rods are preferred for medium to heavy load-bearing structures.
16mm Steel Rod Weight
- A single 16mm steel rod weighs about 19.2 kg per standard length.
- Generally, 3 rods are grouped into one bundle, with a combined weight of 54–56 kg.
- One ton of 16mm steel rods comprises approximately 18 bundles.
- These rods are commonly used in the construction of columns, foundations, and heavy beams.
- 16mm TMT steel rods are ideal for high-load and multi-storey structural designs.
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