Calculate the exact weight of Aluminium profiles, sheets, and bars instantly with our free online Aluminium weight calculator in kg. Simply select your shape, enter dimensions in mm or inches, and get accurate results for various aluminium alloys.
Weight Calculation for Aluminium
The weight of Aluminium components is determined by their volume and specific alloy density. Unlike steel, Aluminium is lightweight yet strong, making it ideal for aerospace, automotive, and architectural applications. The standard density for pure Aluminium is 2.70 g/cm³, but common alloys like 6061 or 5052 may vary slightly between 2.65 to 2.80 g/cm³. Accurate weight calculation is essential for material procurement, shipping cost estimation, and structural load planning.
Aluminium Weight Formula and Manual Calculation
The general formula for calculating Aluminium weight is:
Weight (kg) = Volume (cm³) × Density (g/cm³) / 1000
For specific shapes, the formulas are:
Sheet/Plate: Length (mm) × Width (mm) × Thickness (mm) × 0.00000270
Round Bar: π × (Diameter/2)² × Length (mm) × 0.00000270
Square Tube: [Side² - (Side - 2×Thickness)²] × Length (mm) × 0.00000270
Where 0.00000270 is the density factor for Aluminium in kg/mm³. For Imperial units (lbs/in³), use the factor 0.0975.
Step-by-Step Calculation Example
- Step 1: Identify dimensions: Aluminium Sheet, Length = 1000 mm, Width = 500 mm, Thickness = 5 mm
- Step 2: Calculate Volume: 1000 × 500 × 5 = 2,500,000 mm³
- Step 3: Apply density factor: 2,500,000 × 0.00000270 = 6.75 kg
- Step 4: Convert to lbs (optional): 6.75 × 2.20462 ≈ 14.88 lbs
This calculation aligns exactly with the results provided by the online Aluminium weight calculator in kg.
Aluminium Weight Chart by Alloy (Quick Reference)
Frequently Asked Questions
What is the density of Aluminium in kg/m³?
The standard density of Aluminium is approximately 2700 kg/m³ (or 2.70 g/cm³). This is roughly one-third the density of steel, which is why Aluminium is preferred for applications where weight reduction is critical.
How do I calculate the weight of an Aluminium sheet?
To calculate the weight of an Aluminium sheet, use the formula: Length (mm) × Width (mm) × Thickness (mm) × 0.00000270. This will give you the weight in kilograms. For example, a 1m x 1m sheet of 3mm thickness weighs approximately 8.1 kg.
Does the alloy type affect the weight of Aluminium?
Yes, different Aluminium alloys have slightly different densities due to the addition of other elements like magnesium, silicon, or copper. For instance, Alloy 7075 (2.81 g/cm³) is heavier than Alloy 5052 (2.68 g/cm³). Our calculator allows you to select specific alloys for precise results.