Rebar Weight Per Meter Chart – Complete Guide to Rebar Sizes and Weight
In construction projects, knowing the weight of rebar per meter is very important. Contractors, engineers, and steel buyers often search for this information to estimate material quantities, calculate transportation costs, and plan structural designs.
Rebar, also known as reinforcing steel bar, is widely used to strengthen concrete structures such as buildings, bridges, highways, and industrial foundations.
Understanding how much each rebar size weighs per meter helps professionals in the construction industry make faster and more accurate decisions.
What Is Rebar?
Rebar (reinforcement bar) is a steel bar used inside concrete to improve its strength. Concrete is very strong under compression but weak under tension. Rebar solves this problem by providing the tensile strength that concrete lacks.
Reinforced concrete is therefore used in many structures including:
Residential buildings
Bridges
Roads and highways
Industrial structures
Foundations and columns
Because rebar is sold and transported by weight, knowing the exact weight of each size is essential.
Why Rebar Weight Is Important
Many people in the steel and construction industry search for rebar weight per meter because it helps with several key calculations.
Material Estimation
Before starting a project, engineers need to estimate how much steel reinforcement will be required.
Cost Calculation
Steel is typically sold by ton, so knowing the weight per meter helps estimate the total project cost.
Transportation Planning
Shipping costs depend on total weight. Exporters and suppliers must calculate how many tons can be loaded in trucks or containers.
Structural Design
Structural engineers also use rebar weight to determine the correct reinforcement for concrete structures.
Rebar Weight Per Meter Chart
The weight of rebar depends mainly on its diameter. The larger the diameter, the heavier the steel bar.
Below is a commonly used rebar weight chart based on standard steel density.
| Rebar Diameter | Weight (kg per meter) |
|---|---|
| 8 mm | 0.395 kg |
| 10 mm | 0.617 kg |
| 12 mm | 0.888 kg |
| 14 mm | 1.21 kg |
| 16 mm | 1.58 kg |
| 18 mm | 2.00 kg |
| 20 mm | 2.47 kg |
| 22 mm | 2.98 kg |
| 25 mm | 3.85 kg |
| 28 mm | 4.83 kg |
| 32 mm | 6.31 kg |
| 36 mm | 7.99 kg |
| 40 mm | 9.87 kg |
This table is widely used by steel suppliers, construction companies, and engineering firms around the world.
How to Calculate Rebar Weight
There is also a simple formula used in the construction industry to calculate rebar weight.
The formula is:
Weight (kg/m) = D² / 162
Where:
D = diameter of the rebar in millimeters
Example
For 16 mm rebar:
16 × 16 ÷ 162 = 1.58 kg per meter
This matches the value shown in the standard weight chart.
Common Rebar Sizes Used in Construction
Although many sizes exist, some rebar diameters are used more frequently in construction projects.
10 mm Rebar
Often used for stirrups, slabs, and light reinforcement.
12 mm Rebar
Common in residential construction and small structural elements.
16 mm Rebar
Widely used for columns, beams, and structural reinforcement.
20 mm Rebar
Used in heavy structural applications and foundations.
25 mm and Above
Typically used in large infrastructure projects and industrial structures.
Rebar Grades Explained
In addition to size, rebar is also classified by grade, which indicates its mechanical strength.
Common grades include:
The grade determines the yield strength of the steel, but it does not change the weight per meter. The weight only depends on the diameter of the bar.
Frequently Asked Questions
How much does 12 mm rebar weigh per meter?
12 mm rebar weighs approximately 0.888 kg per meter.
How much does 16 mm rebar weigh?
16 mm rebar weighs about 1.58 kg per meter.
Does rebar grade affect its weight?
No. Rebar weight depends on its diameter, not the grade.
Why is rebar sold by weight?
Steel products are typically sold in tons, which makes weight the most practical unit for pricing and transportation.
Conclusion
Understanding rebar weight per meter is essential for anyone involved in construction, steel trading, or engineering.
By using a standard rebar weight chart, professionals can easily estimate material quantities, calculate project costs, and plan transportation more efficiently.
Whether you are a contractor, engineer, or steel supplier, knowing the weight of different rebar sizes will help you make better decisions in construction projects.