1. What is Outer Diameter of Roll?

The outer diameter (OD) of a roll is the total diameter including the core and all the material wound around it. It's an important measurement for storage, transportation, and processing of rolled materials like paper, film, or metal.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( OD \) — Outer diameter (m)
• \( ID \) — Inner diameter (core diameter) (m)
• \( Length \) — Length of material on roll (m)
• \( Thickness \) — Thickness of material (m)

Explanation: The equation calculates the outer diameter based on the material's total volume and how it's distributed around the core.

3. Importance of OD Calculation

Details: Knowing the outer diameter is crucial for determining storage space requirements, transportation logistics, and ensuring compatibility with processing equipment.

4. Using the Calculator

Tips: Enter all dimensions in meters. Ensure inner diameter is ≥ 0, and both length and thickness are positive values.

5. Frequently Asked Questions (FAQ)

Q1: Why is the outer diameter important?
A: It helps determine if the roll will fit in storage spaces, on processing equipment, or in transportation vehicles.

Q2: Can I use different units?
A: The calculator uses meters, but you can convert from other units as long as all values are in consistent units.

Q3: How accurate is this calculation?
A: It's accurate for uniformly wound materials. Actual OD may vary slightly due to winding tension or material compression.

Q4: Does this work for all rolled materials?
A: Yes, as long as the material has uniform thickness and is wound evenly around the core.

Q5: What if my material has multiple layers?
A: The calculation still works as long as you use the total length and single-layer thickness.