Jumbo Paper Reel Weight & Length Calculator
Calculate estimated weight and total length of a paper reel using GSM, reel dimensions, core specifications, and bulk factor. Designed for paper mills, converters, corrugated box plants, and printing industries.
⚖️ Enter Reel Parameters
๐ Formula Used
Step-by-Step Calculation
๐ Bulk Factor Reference Table
Bulk factor varies by paper type. Use as reference — verify exact value with your paper supplier.
| Paper Type | Typical GSM | Bulk Factor (cc/g) |
|---|---|---|
| Kraft Liner (Brown) | 100–200 GSM | 1.10 – 1.30 |
| Test Liner / Semi-Chem | 100–180 GSM | 1.20 – 1.45 |
| Fluting / Medium | 100–150 GSM | 1.40 – 1.70 |
| Duplex / Triplex Board | 200–400 GSM | 1.30 – 1.60 |
| White Top Liner | 130–200 GSM | 1.10 – 1.25 |
| Newsprint | 40–60 GSM | 1.50 – 1.80 |
| Coated / Art Paper | 80–300 GSM | 0.85 – 1.10 |
❓ Frequently Asked Questions
What is Bulk Factor in paper?
Bulk factor (cc/g) is the reciprocal of paper density — it tells how many cubic centimetres of volume one gram of paper occupies. Higher bulk means bulkier/softer paper. Bulk Factor = 1 ÷ Density (g/cm³).
Why do results say "Approximate"?
Calculation assumes uniform winding tension and constant paper thickness. In practice, winding tension variation and splice points cause minor deviations. Actual weight may vary ±2–5% from calculated values.
What is standard core ID for paper reels?
Most common core inside diameter is 76 mm (3 inches). Some mills use 150 mm (6-inch) cores for very large reels. Core wall thickness typically ranges from 8 mm to 15 mm depending on reel weight.
How to convert Reel Length from metres to feet?
Multiply metres by 3.281 to get feet. Example: 2500 m × 3.281 = 8,202 feet. For yards, multiply metres by 1.094.
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