General
Yes. All calculators on GSMCalculator.com are completely free. No login, no subscription, no hidden fees.
No account required. Open any calculator, enter your values, get your result instantly.
All calculations run on our server using industry-standard formulas. Results are as accurate as the values you enter.
Built specifically for the flexible packaging industry — factories, converters, and buyers working with BOPP, PET, PE, CPP, Nylon, aluminium foil and laminate structures.
Calculators
Roll OD (Outer Diameter) is the total outside diameter of a wound film roll in millimetres.
Different films have different densities. Using the wrong density gives a wrong answer. Always select the correct film type.
Composite GSM is the total weight per square metre of the finished laminate including all film layers and adhesive.
Coverage % is the proportion of the print area that is actually printed. A solid flood is 100%. Typical designs are 40–70%.
PackERP
PackERP is a full ERP system for flexible packaging manufacturers covering CRM, quotations, job cards, production, invoicing and accounting.
The calculators are standalone quick-use tools. PackERP is a complete factory management system for multi-user, multi-department operation.
Visit flexipro.gsmcalculator.com to learn more and get in touch.