Weight Of 8mm, 10mm, 12mm, 16mm TMT Bars Per Meter

Weight Of 8mm, 10mm, 12mm, 16mm TMT Bars Per Meter- When you plan a construction project, you need to buy TMT bars. But most people make one common mistake. They order bars without knowing the exact weight per meter.

This leads to two big problems. Either you buy more bars than needed and waste money. Or you buy less and the work gets delayed. That is why knowing the weight of 8mm, 10mm, 12mm, and 16mm TMT bars per meter is so important. It helps you plan better. It helps you order the right quantity. And it saves you from unnecessary cost and confusion.

Now, TMT bars come in different sizes. The most commonly used sizes in India are 8mm, 10mm, 12mm, and 16mm. Each size has a different weight per meter. And if you do not know these weights, you cannot estimate your material requirement correctly.

In this blog, we have covered the TMT bar weight per meter of all four sizes clearly. You will also find a simple comparison chart at the end for quick reference. So, whether you are a homeowner, contractor, or civil engineer, this guide will make your work easier.

What Is TMT Bar Weight Per Meter and Why Does It Matter?

TMT bar weight per meter simply means how much one meter of a TMT bar weighs in kilograms.

Every TMT bar has a fixed weight for each meter of its length. This weight depends on the diameter of the bar. A thicker bar weighs more. A thinner bar weighs less.

Now, in construction, steel is always bought and sold by weight in kilograms. Not by number of pieces.

So if you are planning to build a slab, column, or beam, you need to know how much steel you require in kg. And for that, you need to know the weight per meter of each bar size.

Without this number, your estimation will go wrong. You may order too much or too little. This is why weight per meter is the starting point of any steel calculation.

TMT Bar Weight Per Meter – Standard Formula Explained

You don’t need any special software or tool to calculate TMT bar weight. There is one simple formula that is used across the construction industry in India.

The formula is:

Weight (kg/m) = D² / 162

Here, D is the diameter of the TMT bar in millimeters.

That’s it. Just square the diameter and divide it by 162. The answer you get is the weight of that bar per meter in kilograms.

Let’s understand this with a quick example.

For a 10mm TMT bar: 10 × 10 = 100 100 ÷ 162 = 0.617 kg per meter

You can use this same formula for any bar size. In the sections below, we have already applied this formula for 8mm, 10mm, 12mm and 16mm bars. So you don’t have to calculate anything yourself.

Weight of an 8 mm TMT bar per meter

The 8mm TMT bar is the thinnest and lightest among the commonly used bar sizes.

Using the standard formula D²/162:

8 × 8 = 64

64 ÷ 162 = 0.395 kg per meter

So one meter of an 8mm TMT bar weighs approximately 0.395 kg.

The 8mm bar is mostly used in light construction work. It is commonly used in wall reinforcement, slab reinforcement in small structures, and stirrups in beams and columns.

One bundle of 8mm TMT bars usually contains 10 bars. Each bar is 12 meters long. So one bundle weighs around 47.4 kg.

Weight of 10mm TMT bar per meter

The 10mm TMT bar is one of the most widely used bar sizes in residential construction.

Using the standard formula D²/162:

10 × 10 = 100

100 ÷ 162 = 0.617 kg per meter

So one meter of a 10mm TMT bar weighs approximately 0.617 kg.

Most contractors prefer this size for slabs, staircases, and light-beam reinforcement. It is a go-to choice for most house construction projects across India.

One bundle of 10mm TMT bars usually contains 7 bars. Each bar is 12 meters long. So one bundle weighs around 51.8 kg.

Weight of 12mm TMT bar per meter

The 12mm TMT bar is a medium-sized bar and is heavily used in RCC construction.

Using the standard formula D²/162:

12 × 12 = 144

144 ÷ 162 = 0.888 kg per meter

So one meter of a 12mm TMT bar weighs approximately 0.888 kg.

In most homes in Punjab and Haryana, this is the most ordered size, because it offers a good balance between strength and flexibility.

One bundle of 12mm TMT bars usually contains 5 bars. Each bar is 12 meters long. So one bundle weighs around 53.3 kg.

Weight of 16mm TMT bar per meter

The 16mm TMT bar is a heavy and strong bar used in load-bearing structures.

Using the standard formula D²/162:

16 × 16 = 256

256 ÷ 162 = 1.580 kg per meter

So one meter of a 16mm TMT bar weighs approximately 1.580 kg.

This size is commonly used in columns, heavy beams, foundations, and retaining walls. Wherever heavy load needs to be handled, 16mm bars are the right choice.

One bundle of 16mm TMT bars usually contains 3 bars. Each bar is 12 meters long. So one bundle weighs around 56.9 kg. Always confirm the bundle weight with your supplier before ordering.

TMT Bar Weight Chart – 8mm, 10mm, 12mm, 16mm Comparison Table

This simple chart shows you the weight of all four sizes in one place. You don’t have to do any math. Simply find the size of your bar and get the weight right away.

Conclusion

We hope this guide helped you understand the weight of 8mm, 10mm, 12mm, and 16mm TMT bars per meter in a simple way. Once you know the right weight, it becomes very easy to plan your project. This also helps in saving your time and money. If you want to buy good quality TMT bars, Khandelwal Loha has always been a name people trust. You can visit them and purchase according to your needs.