## What Is Steel Bar Calculator?

[the_ad id=”39531″]The steel bar calculator easily calculated steel weight. As per below weight calculator of the weight of steel bars below process

**Step 1 – Select Unit **

Select Units like **Meter and Feet **as per your requirement.

**Step 2 – Select Shape of Bar**

Then select Shape of bars, **Round, and Square **as per your requirement.

**Step 3 – Select Bar Size **

After selecting the Shape of bar then select size of Bar like 8mm,10mm,12mm as per your requirement.

**Step 4 – Length in Meter**

The requirement of length bars are you required

**Step 4 – Finally U**nit Weight of Steel

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## How to Steel Bar Calculation (Weight)?

Here Steel Weight Caution = **Area of Bars X Length of Bar X Density of Steel**

For, **Square Shape **

Weight of Steel Bar = Area of Bars **X** Height of Bar **X** Density of Steel

Area of Bars = **Lenght X Width**

Height of Bar = **as per the required length **

Density of Steel = 7850 kg/m^{3}

Example, **10 mm Square Bar**, Hight =** 1 m.**

Area of Bars = 10 x 10** ^{ }**=

**100 mm = 100x 10**

^{-6 }m^{2 }(0.00010 m^{2})Length of Bar = 1 m.

Weight of Steel Bar = Area of Bars **X** Length of Bar **X** Density of Steel

Weight of Steel Bar = **(0.0001 m**

^{2}) X 1 m. X 7850 kg/m

^{3}

Weight of Steel Bar (10 mm ) = **0.7850 kg per M.**

## What Is Reinforcement Weight Calculator?

The steel bar calculator easily calculated reinforcement weight. as per below weight calculator of the weight of steel bars below process

**• First Step, **

Select of Unit like **Meter and Feet **as per your requirement.

**• Second Step, **

Then select Shape of bars, **Round, and Square **as per your requirement.

**• Third Step,**

After selecting the Shape of bar then select size of Bar like 8mm,10mm,12mm as per your requirement.

**• Fourth Step and Last Step, **

The requirement of length bars are you required

**Then **

## How to Calculated Reinforcement Weight / Rebar Weight Calculator

Here Reinforcement Weight = **Area of Reinforcement X Length of Reinforcement X Density of Reinforcement **

Area of Reinforcement = **(π/4) x d ^{2}**

Length of Reinforcement = **as per the required length **

Density of Reinforcement / **Unit Weight of Steel** = 7850 kg/m^{3}

Example, **10 mm dia** of a Reinforcement, Lenght =** 1 m.**

Area of Reinforcement = **(π/4) x 10 ^{2 }**=

**78.5 mm = 78.5 x 10**

^{-6 }m^{2 }(0.0000785 m^{2})Length of Reinforcement = 1 m.

Weight of Reinforcement = Area of Reinforcement **X** Length of Reinforcement **X** Density of Reinforcement

Weight of Reinforcement = **(0.0000785 m**

^{2}) X 1 m. X 7850 kg/m

^{3}

Weight of Reinforcement (10 mm ) = **0.6163 kg Per M.**

**Unit Weight of Steel Bars Per Metre Length**

Sr.No. | Dia of Bar | Weight of Bar Per Metre Length(D^{2}/162) |

1 | 8 mm | 0.395 kg |

2 | 10 mm | 0.619 kg |

3 | 12 mm | 0.888 kg |

4 | 16 mm | 1.58 kg |

5 | 20 mm | 2.469 kg |

6 | 25 mm | 1.388 kg |

7 | 28 mm | 4.839 kg |

8 | 32 mm | 6.32 kg |

9 | 40 mm | 9.87 kg |

## Video tutorial for better understanding:

### Steel Bar Calculation Formulas

For calculating the weight of bars and shapes made from steel, use this formula: **Weight (lbs) = length (ft) x width (ft) x thickness (ft) x density (lb/ft^3**).

### Steel Bar Calculation Software

Here are a few examples of software programs commonly used for steel bar calculation:

**AutoCAD**: AutoCAD is a widely used computer-aided design (CAD) software that offers tools for designing and calculating various aspects of construction projects, including steel bars. It provides functionalities for creating detailed drawings, performing measurements, and generating accurate steel bar calculations.**Tekla Structures**: Tekla Structures is a comprehensive 3D modeling software widely used in the construction industry. It offers powerful tools for modeling and detailing steel structures, including automatic steel quantity calculations for reinforcement bars.**RISA-3D**: RISA-3D is structural engineering software that allows users to analyze and design various types of structures, including steel buildings. It provides tools for generating detailed steel reinforcement drawings and calculating the required quantity of steel bars based on design parameters.

### Steel Bar Calculation Methods

**How to Calculate Weight of Steel Bars?**

- Also Read: Estimation of Steel Reinforcement for slab,beam and column.
- Weight of steel Flat bar = (Length x width x thickness) x 7850.
- Example 1: Determine the unit weight of MS Flat bar of width 40mm and Thickness of 20mm.
- Weight of steel bar = Volume of steel Bar x Density of steel.

### Steel Bar Length Calculation

**Number of bars**

- Space = Distance inside which bars should be placed = L – 2 x cover.
- So, number of bars = (L – 2 x cover) / c/c spacing of bars.
- Number of stirrups in a beam.
- = Length of beam – 2 x cover / c/c spacing of stirrups + 1.

### Steel Bar Quantity Calculation

Steel quantity is calculated by **multiplying the cross-section of steel with its total density** which can be 7850 kg/m3. The total steel quantity per slab must be equal to the total amount of main steel and stirrup steels.

### Area of Steel Formula

Measure the length and width, in inches, of the rectangular steel sheet. For example, the length might be 135 inches while the width is 50 inches. **Multiply the length by the width** to obtain the area of the steel in square inches.

### Steel Bar Weight

The weight of a steel bar depends on its dimensions, specifically its length, width, and thickness. To calculate the weight of a steel bar, you need to know its density, which is typically measured in kilograms per cubic meter (kg/m³) or pounds per cubic inch (lbs/in³). The most common type of steel used in construction is carbon steel, which has an approximate density of 7,800 kg/m³ or 0.2836 lbs/in³.

### How to Calculate Reinforcement Weight?

The weight of 1 meter is equal to the mathematical weight of a circle of the same diameter, and is calculated using a simple formula **m = D * D * Pi / 4 * ro,** where ro is the density of the material, in this case 7850 kg/m³, D is the nominal diameter.

### How to Calculate Area of Steel Bar?

**Multiply the length by the width to obtain the area of the steel in square inches**. Now, for the example, you have 135 inches times 50 inches, or an area of 6,750 square inches. Divide the area by 144 to change to square feet, since 144 square inches equals one square foot.

### How to Calculate Reinforcement?

With the length ( L ) and diameter ( d ) of the rebar, calculate the rebar volume using: **(3.14 × d² / 4) × L . Multiply the volume by the material density**. Now, you have the rebar weight.

### 4 Rebar Weight Per Foot

Physical characteristics of #4 Rebar:

Weight per unit length: **0.668 pounds per foot** (0.996 kilograms per meter) Nominal diameter: 0.5 inches (12.7 millimeters)

### 6 Rebar Weight Per Foot

Weight per unit length: **1.502 pounds per foot** (2.24 kilograms per meter)

### 7 Rebar Weight Per Foot

Weight per unit length: **2.044 pounds per foot** (3.049 kilograms per meter)

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Important Point

Krunal Rajput says

If we put 1 meter length for each diameter of steel bar in the formula then we will get the unit weight.6 mm ø bar = 6² x 1/162 = 0.222 kg/m.

8 mm ø bar = 8² x 1/162 = 0.395 kg/m.

10mm ø bar = 10² x 1/162 = 0.617 kg/m.

12mm ø bar = 12² x 1/162 = 0.888 kg/m.

16mm ø bar = 16² x 1/162 = 1.580 kg/m.

utpal B Panchal says

Very nice details for the help to how find the bar weight easily

Krunal Rajput says

Thanks, Dear

Moin Ahmad Khan says

hi, how comes 1/162 ? is it factor ? from where

Tauseef says

how to calculate steel quantity stirrups

ARDEE says

HOW MANY KG OF STEEL BAR TO BE INSTALL ON SITE PER PERSON IN 10 HOURS WORK

Matthew L. Deloney says

The amount of steel bar that can be installed on a site per person in 10 hours of work can vary depending on several factors, including the skill level of the workers, the complexity of the installation, and the tools and equipment available. It is also important to consider that the installation of steel bars is a specialized task typically performed by a team rather than an individual.

That being said, it’s challenging to provide a precise estimate without specific information about the project. However, I can provide a general guideline based on common industry practices. On average, a skilled steelworker can install approximately 100 to 150 kg of steel bars per day, assuming standard working conditions and using appropriate tools and equipment.

Keep in mind that this is a rough estimate, and actual productivity may vary. It’s always best to consult with professionals or experienced personnel on the job site to get a more accurate estimate based on the specific project requirements and conditions.