## In this article, we will discuss

## Calculation of TMT bar Weight | The calculation for the weight of a steel bar | How do you determine steel weight in kg | How do you evaluate steel weight in feet | Few important points about TMT Bar Weight

## Calculation of TMT bar Weight

TMT bars are used a lot in**construction**, so their weight is one of the most important things to know. The exact formula for finding the mass of

**steel per square meter**is D*D/162. In this formula, D is the bar's diameter (in meters) and its weight (in kilograms). Here, W is the bar's weight in kilograms, D is its diameter in millimetres, and L is its Length in meters.

## The calculation for the weight of a steel bar:

The**weight of steel bars**is calculated using the formula: Ï€D*2/ 4 × L × density.

In the formula, w is the

**weight of the steel**, which is 3.14; L is the Length of the steel bar, which is 1 meter; D is the diameter of the steel bar in millimetres, and D = 7850 kg/m3 is the density.

## Calculation of TMT bar section weight:

- If we give each diameter of the steel bar a length of 1 meter in the formula, we will get the unit weight.

- 8 mm Ã¸ bar = 8² x 1/162 = 0.395 kg/m.

- 10mm Ã¸ bar = 10² x 1/162 = 0.617 kg/m.

- 12mm Ã¸ bar = 12² x 1/162 = 0.888 kg/m.

- 16mm Ã¸ bar = 16² x 1/162 = 1.580 kg/m.

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## Illustration:

### Weight of 13mm steel bar:

**For example**,

**diameter of steel**= 13mm, length of 1 steel rod = 13 meter, after that weight of 1 piece of 13mm steel rod in kilogram = (13×13×13)/162 = 13.567 kg.

Thus, the weight of 1 piece 13mm Steel rod is 13.567 kg.

## How do you determine steel weight in kg?

**The weight of the bar**in kilograms per meter should be (d2 ÷162), where d is the diameter of the bar in millimetres.

"L" for column major

**steel in footing**is supposed to be at least 30cm/as specified.For a bent bar, add 0.42d to the straight Length of the bar, where d is the clear depth of the beam per slab.

## How do you evaluate steel weight in feet?

- Is the formula to estimate the
**weight of steel bars in KG**/feet?

- Thus, the weight of 10 mm bar shall be,

- (10 x 10) / 533 = 0.188 kg/feet.

- To be exact W= D2/533 it is.

- It is resulting from a very fundamental concept.

- Density of steel in terms of meter =7850 kg/m3> 7850/(1000X1000X1000) kg per mm.

**TMT Rebars are supplied in U-bent or straight rods. The Length of the TMT Bars is 40 feet.**

**Civil engineers**and contracts usually say to buy

**TMT Bars**by the piece, bundle, or tonne. The sizes also change based on how the building is made. For example, 10mm/12mm bars are needed for the main slab, 8mm/10mm for the distribution, and 16mm/12mm for the beam, depending on the span.

## The most common way to figure out how much steel you need is to turn rods into bundles or kgs.

Few important points about TMT Bar Weight:

- The standard Length of rods is 12 meters.

- The tolerance of TMT Bars should follow IS guidelines, according to IS 1786:2008

- TMT bars produced in various diameters 8 mm | 10 mm | 12 mm | 16 mm | 20 mm | 25 mm | 28 mm | 32 mm

- TMT Bars You can talk about weight in Kilograms, Quintals, or Tons. 1 Quintal = 100 kgs | 1 Ton = 1000 kgs

## Weight Tolerance:

- 8mm and 10mm: ± 7%

- 12mm to 16mm: ± 5%

- 20mm to 32mm: ± 3%

**For example**, the weight of an 8mm bundle can be anywhere from 44.09 kg to 50.73 kg.

**Standard rod length: 12 meters.**

To determine the weight of 1 TMT rod, the following formula is used:-

(dia * dia) / 162* 12 = weight of 1 TMT rod.

Dia denoes diameter in mm (8mm, 10mm, 12mm, 16mm, 20mm, 25mm or 32mm)

Adherence to IS:1786-2008 standard law provides tolerance.

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