Stretch Film Weight Calculator

Stretch Film Weight Formula:

\[ W = L \times W \times T \times D \]

Length:

meters

Width:

meters

Thickness:

meters

Density:

kg/m³

Film Weight (kg):

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1. What is a Stretch Film Weight Calculator?

Definition: This calculator estimates the weight of stretch film based on its dimensions (length, width, thickness) and material density.

Purpose: It helps packaging professionals and manufacturers determine the weight of stretch film needed for specific applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = L \times W \times T \times D \]

Where:

\( W \) — Weight of stretch film (kilograms)
\( L \) — Length of film (meters)
\( W \) — Width of film (meters)
\( T \) — Thickness of film (meters)
\( D \) — Density of film material (kg/m³)

Explanation: The formula calculates the volume of the film and multiplies by density to get weight.

3. Importance of Stretch Film Weight Calculation

Details: Accurate weight estimation helps in inventory management, shipping cost calculations, and material planning.

4. Using the Calculator

Tips: Enter the film dimensions in meters (default thickness is 25 microns = 0.000025m) and density (default 925 kg/m³ for LLDPE). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical thickness of stretch film?
A: Common thicknesses range from 17-35 microns (0.000017-0.000035 meters).

Q2: What density value should I use?
A: For LLDPE stretch film, use 925 kg/m³. For other materials, adjust accordingly.

Q3: Does this account for stretched film?
A: No, this calculates weight of unstretched film. For stretched weight, multiply by stretch ratio.

Q4: How do I measure film length?
A: For rolls, measure the fully unrolled length. For pre-cut sheets, use sheet length.

Q5: Can I calculate roll weight with this?
A: Yes, if you know the total length when unrolled and the roll width.