Quick calculators we use every day in our factory, made free for UK businesses that buy mailing bags and flexible packaging.
Grams per bag, bags per kilo and the total weight of an order, from size and micron.
Open calculator →Estimate your UK plastic tax for 2026/27, check if you must register and see the saving with recycled bags.
Open calculator →Inches to millimetres, micron to gauge, and the nearest standard UK mailing bag size.
Open converter →We manufacture them in Istanbul since 1996 and deliver to your door from one pallet. Free sample kit.