How to Use the Cardboard Box Weight Calculator

A Cardboard Box Weight Calculator estimates the weight of a cardboard box based on its dimensions, thickness, and material density.

This tool is especially useful for shipping managers, packaging engineers, or DIY movers who need to calculate the empty box weight before loading it or estimating shipping costs.

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Steps to Use:

1. Enter the external dimensions of the box:
   • Length (cm)
   • Width (cm)
   • Height (cm)
2. Enter the cardboard thickness (in millimeters).
3. Input the density of the cardboard material (in g/cm³).
   • Typical corrugated cardboard = 0.0007 g/cm³
4. Click “Calculate Weight” to see the estimated weight of the empty box in grams.

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Example:

• Box Size: 40cm x 30cm x 20cm
• Thickness: 4mm
• Density: 0.0007 g/cm³

The tool estimates the box weighs approximately 470–490 grams, depending on surface area.

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Cardboard Box Weight Calculator FAQ

Q1: Does this include the weight of internal contents?
A: No. This calculator only estimates the weight of the cardboard box itself, not any items placed inside.

Q2: What density should I use?
A: For regular corrugated cardboard, use 0.0007 g/cm³. If unsure, stick to that default.

Q3: Can I use inches instead of centimeters?
A: This version only accepts centimeters (cm) and millimeters (mm). You can convert inches to cm (1 inch = 2.54 cm).

Q4: Is the estimate 100% accurate?
A: It's an approximation based on external dimensions and uniform thickness. Real-world values may vary due to cutouts, flaps, or a multi-layered board.

Q5: Can I calculate boxes with lids or internal dividers?
A: This calculator assumes a basic six-sided box. For complex designs, a CAD tool or a manufacturer's quote would be more accurate.