Rectangular Bar Weight Calculator

Determine the weight of rectangular bars for precise metalworking and fabrication projects.

Select Your Metal:
Number of Pieces:
Enter size information:
Calculated Weights
Approx. weight in kg*
Approx. weight in lbs*
*These weights should be used for estimation purposes only. Plate weight does not allow for kerf.

In today's fast-paced industries, accuracy and efficiency are paramount. One crucial aspect in many industries, such as construction, manufacturing, and engineering, is determining the weight of materials used. Rectangular bars are commonly used in these fields, and knowing their weight is essential for various applications.

This article will delve into the world of rectangular bar weight calculators, explaining their significance, functionality, and benefits. A rectangular bar weight calculator operates on a simple principle: utilizing the dimensions of the bar and the material type to determine its weight.

The formula used for calculation depends on the material's density and the dimensions of the bar. Users input the length, width, thickness, and material type into the calculator, which then computes the weight instantly.

How to Calculate Rectangular Bar Weight

To calculate the weight of a rectangular bar, you'll need to know its dimensions (length, width, and thickness) and the density of the material it's made of. Here's the formula:

Weight = Length × Width × Thickness × Density

Measure the Dimensions: Use a ruler or measuring tape to determine the length, width, and thickness of the rectangular bar. Make sure to measure in the same unit (e.g., inches or centimeters).

Find the Density: Look up the density of the material the bar is made of. Density is usually measured in kilograms per cubic meter (kg/m³) or pounds per cubic inch (lb/in³). You can find this information in material specifications or online resources.

Plug into the Formula: Multiply the length, width, and thickness of the rectangular bar together. Then, multiply the result by the density of the material.

Calculate the Weight: The final result will be the weight of the rectangular bar in the chosen unit (e.g., kilograms or pounds).


Let's say we have a rectangular bar with the following dimensions:

Length = 10 inches
Width = 2 inches
Thickness = 0.5 inches
And the material is made of steel, which has a density of 0.284 lb/in³.

Weight = 10 inches × 2 inches × 0.5 inches × 0.284 lb/in³
Weight ≈ 2.84 lb

So, the weight of the rectangular bar is approximately 2.84 pounds.