What is the equivalent of 2.2 pounds in kilograms?

To convert pounds to kilograms, you can use the conversion factor where 1 pound is approximately equal to 0.453592 kilograms. Therefore, to find the equivalent of 2.2 pounds in kilograms, you multiply:

2.2 pounds × 0.453592 kg/pound = approximately 0.998 kg.

When rounded, this figure is close to 1 kilogram. Thus, the closest and most appropriate choice is indeed 1 kg.

Understanding this conversion is essential in fields such as pharmacy and medicine, where precise measurements are critical and units often need to be converted for dosage calculations or other applications.