Use this calculator to work out the weight in grams of a metre length of polythene.

Use this handy calculator to work out the weight of 1,000 bags. This is useful when you need to work out minimum order quantities or price breaks.

This calculator will help you work out the total length of a roll based on the diameter of the roll.

Convert Micron to Gauge and back again!

Use this calculator to work out the size of a cover or the size of a polythene liner. Just enter the details.

Use this calculator to work out which size of layflat tubing best suits your requirements.