How many kilograms are in one gram?

One gram is a metric unit of mass that is equal to one-thousandth of a kilogram. To convert grams to kilograms, you divide the number of grams by 1,000. Since there are 1,000 grams in a kilogram, one gram is therefore 0.001 kilograms. This conversion is fundamental in understanding the metric system, where units are based on powers of ten. By recognizing that "kilo" stands for 1,000, it becomes clear that for every gram, there is a corresponding value in kilograms that can be calculated by dividing by 1,000. Thus, stating that one gram is 0.001 kilograms is correct and reflects the basic principle of unit conversion within the metric system.