How to Calculate the Weight of an Aluminium Strip Coil

Calculating the weight of aluminum strip coils is fundamentally based on the physical formula "Volume × Density," with all calculation methods derived from this basic logic. To ensure accuracy, first identify the two key fixed values and the variable parameters:

1. Fixed Parameter: Aluminum Alloy Density

For the vast majority of pure aluminum strips and standard alloys (such as 1060 and 3003) on the market, a standard density of 2.7 g/cm³ (2700 kg/m³) is used. No fine-tuning is required for routine commercial calculations, as this provides sufficient precision.

2. Variable Parameters (Must be measured or known)

These three data points form the core of the calculation—none can be omitted—and serve as the primary variables for 1mm and 2mm aluminum strips:

- Thickness: Common specifications include 0.5mm, 1mm, 2mm, 3mm, etc.; this article focuses on the mainstream thicknesses of 1mm and 2mm.

- Width: The width of the aluminum strip; common sizes include 100mm, 200mm, 500mm, 1000mm, etc.

- Length: The total unfolded length of the entire coil (this can also be calculated from the coil diameter, as discussed later).

I. General Calculation Formulas

To facilitate routine industry calculations and avoid unit conversion errors, two common formulas have been compiled—one for "millimeter units" and one for "meter units." The millimeter-based formula is recommended as the primary choice, as it aligns with standard aluminum strip specifications.

1. General Formula for Millimeter Specifications (Most Common)

Weight per coil (kg) = Thickness (mm) × Width (mm) × Length (m) × 2.7 ÷ 1000

Formula Principle: Derived by simplifying the calculation using the aluminum density of 2.7 g/cm³ after standardizing units. It eliminates complex conversion steps, allowing for direct input of standard thickness, width, and length specifications with minimal margin of error.

2. Standard Volume Conversion Formula (For Precise Verification)

Weight (kg) = Volume (m³) × 2700 (kg/m³)

Volume = Thickness (m) × Width (m) × Length (m). This method is suitable for scenarios requiring precise verification or financial reconciliation, yielding more rigorous results.

II. Weight Calculation for 1mm and 2mm Aluminum Strip Coils

Using the most common factory specifications, we demonstrate the calculation process with specific examples. This provides a clear comparison of the weight difference between 1mm and 2mm aluminum strips, making it easy for you to apply the method directly.

Case 1: Weight calculation for a 1mm-thick aluminum strip coil

Given: 1mm aluminum strip, width 500mm, unfolded coil length 1000m

Apply the general formula (using millimeters): Weight = 1 × 500 × 1000 × 2.7 ÷ 1000

Step-by-step calculation: 1 × 500 = 500; 500 × 1000 = 500,000; 500,000 × 2.7 = 1,350,000; 1,350,000 ÷ 1000 = 1,350 kg

Conclusion: The weight of a single aluminum strip coil with specifications of 1mm × 500mm × 1000m is 1,350 kg.

Case 2: Weight calculation for a 2mm-thick aluminum strip coil

Given: aluminium strip 2mm; comparison using the same width and length (width 500mm, length 1000m)

Apply the general formula (using millimeters): Weight = 2 × 500 × 1000 × 2.7 ÷ 1000

Step-by-step calculation: 2 × 500 = 1,000; 1,000 × 1,000 = 1,000,000; 1,000,000 × 2.7 = 2,700,000; 2,700,000 ÷ 1000 = 2,700 kg

Conclusion: The weight of a single aluminum strip coil with specifications of 2mm × 500mm × 1000m is 2,700 kg.