Work through the task
- Record component masses and supplier evidence; distinguish measured data from unknown values.
- Use mass weighting for recycled content and preserve the entire specimen and test-condition context when changing reporting units.
- Keep arithmetic separate from compliance, barrier-life or environmental claims; obtain matching-condition test reports.
Tools for this job
Packaging Material Reduction Calculator
Compare complete packaging mass for the same product count.
Open calculator →Weighted Packaging Recycled Content Calculator
Weight supplier-verified fractions by actual component mass.
Open calculator →Seal Strength Unit Converter
Rescale the reporting basis and convert newtons to gram-force.
Open calculator →OTR Unit Converter
Convert oxygen transmission rate (OTR) between cm³/m²/day, cm³/100 in²/day and cm³/in²/day while keeping test conditions unchanged.
Open calculator →WVTR Unit Converter
Convert water vapour transmission rate (WVTR) between g/m²/day, g/100 in²/day and g/in²/day for the same measured test conditions.
Open calculator →A worked example
5 g saved on 100,000 products gives 500 kg.
Use your supplier specification and quotation. These numbers demonstrate the arithmetic; they are not market prices or a packaging suitability assessment.
Checks before you decide
- Old complete packaging mass
- New complete packaging mass
- Products in explicit period