It will vary on the product type and brand. But here are some of the common household items that we found which weighs 1000 grams or 2.2 lbs / 1kg:
bedding sheet set (flat sheet, fitted sheet, and 2 pillowcases)
a 2.5-qt double boiler with lid
Staple products: Spaghetti (1 kg), Sugar, granulated white (1 kg), Flour, for baking, white (1 kg)
a standard 1-liter bottle of soda weighs 2.2 pounds
Gram is the unit of mass or weight that is used to measure the mass of small objects. When using an object that has a larger mass you can use kg (1 kg = 1000g). Check out instant units and measurements conversion, metric conversion for gram at Convert-me.com.
Metric units are very nice to work with, since they are all multiples of ten (or a hundred, or one-tenth, etc.) of each other. Are you having a hard time? Learn about the prefixes that will tell you how to convert in the metric system at Study.com.