As quoted from the Envirowise website for PACK-IN:
“Measuring the overall environmental impact of a packaging system can be difficult and time consuming. This web-based tool simplifies this task by allowing you to assess packaging and also compare different packaging options using a small number of pre-defined environmental parameters.
The tool builds an environmental profile of your packaging system using the following information:
- Types and amounts of materials you are using (or intending to use) in your packaging
- Information on where the materials come from and how they are transported to your facility
- Data on volume of product and packaging
The tool then presents the results in both graphical and tabular formats based on six parameters: recycled content, recyclability, product/pack ratio, volumetric efficiency, embodied carbon and transport.”
I haven’t used it personally, but if you do know someone in the packaging space, do let them know about it 
There is an increasing number of free and premium SAAS (software as a service) tools for eco-design available. I hope to cover more of them in future posts.