Gross Roll Weight Calculator
Add net film, core and protective-packaging weights to estimate gross roll weight. Enter the core weight directly or estimate it from hollow-cylinder geometry.
Use a saved product specification (optional)
Enter your values
First time using this calculator?
Replace the example values with figures from your supplier sheet or measurements. Choose the unit beside each value. Results update as you type; fix any highlighted field before using the result.
GSM means grams per square metre. Net weight excludes the core and other packaging. MOQ means the minimum order quantity. An optional field can stay blank unless the result you need depends on it.
Prices keep the selected currency; changing its label does not convert an exchange rate. Save or export the result after checking your inputs.
Help with net film weight
Use material weight only. Subtract the core, pallet and outer wrapping from a gross shipment or roll weight. Find the net value on the supplier sheet or weigh it separately.
Gross roll weight
Gross weight = net film weight + core weight + packaging weight
80 + 1.5 + 0.5 = 82 kgSaved calculations stay in this browser. No account or cloud backup is created.
Save to a product project (optional)
Choose or create a saved product project ↗This is an illustrative example. Saved or transferred values must be checked against your job.
Calculated from your inputs. Confirm specifications with your supplier.
How sensitive is this result to your assumptions?
Vary one input and inspect gross roll weight
All other entered inputs stay fixed. Ranges are your scenarios, not statistical confidence or supplier performance predictions. This uses the same validated calculator engine.
The formula, made clear.
Gross weight is the mass handled or shipped as one roll, while net weight is the film available for conversion. Keeping these quantities separate prevents the core from being treated as purchased film during price or yield calculations. A directly weighed empty core is preferable when available. The geometry option estimates core mass from its outside diameter, inside diameter, axial length and material density.
How to use this calculator
- 01
Enter the roll’s net film weight.
- 02
Use a known core tare or enter core dimensions and an editable density estimate.
- 03
Add the wrapping, end protection or other packaging carried with that roll.
A calculation you can check
The example assembles net film and non-film tare into a gross reel weight for handling or logistics planning.
- Net film weight
- 80 kg
- Core weight
- 1.5 kg
- Wrapping / packaging weight
- 0.5 kg
80 + 1.5 + 0.5 = 82 kgCheck the displayed formula and units against your quotation. Use measured GSM, net weight and actual layout dimensions where available. Default densities are planning assumptions, not certified material properties. Calculated cost does not certify strength, compatibility or safe loading.
Method, units and material assumptions ↗