Kilogram
A kilogram (kg) is the primary unit of mass in the metric system and is used worldwide for science, commerce, and everyday life. One kilogram equals 1,000 grams and is commonly seen on product packaging, body weight scales, and nutritional labels. Since the kilogram is the base unit for metric mass, it is straightforward to convert to other metric units.
Kilograms provide a practical scale for most objects we handle daily — from groceries to luggage. When converting between kilograms and US units like pounds and ounces, a converter ensures accuracy without memorizing conversion factors.
Ounce
An ounce (oz) is a small US customary unit of weight equal to 1/16 of a pound, or about 28.35 grams. It is commonly used in cooking, portion sizes, mail weighing, and food packaging. Ounces provide a practical scale for items too small for pounds but too large for grams alone.
Although the same word, ounce, also refers to a liquid measurement (fluid ounce), the two units are completely different. This converter focuses on ounces used for weight.