Converting a metric unit, such as kilograms, to a U.S. Standard unit, such as pounds, is a matter of finding the correct conversion rate and multiplying. The conversion rate tells you how many of one unit equals another unit.
Find the conversion rate
When finding the conversion rate, the easiest process is to set the unit you want to convert to one, as it will simplify the calculation later on. In this case, the unit to be converted is kilograms, and 1 kilogram is equal to 2.2046 pounds.
Round the conversion rate if necessary
Depending on how precise you want your answer, you can leave the conversion rate as is or round it to something simpler. In this case, use 2.2046 as the rate or round it to 2.2. In most practical situations, 2.2 is sufficient.
Multiply the unit you want to convert by the conversion rate
In this example, you multiply 180 kilograms by 2.2 to get the number of pounds. Doing this gives you an answer of 396. So, there are 396 pounds in 180 kilograms. If you use the conversion rate of 2.2046, the answer becomes 396.828 pounds.
Round the final answer if necessary
Depending on your situation, you may be required to round the final answer to a certain decimal place. If you have 396.828 pounds as your final answer and need to round it to one decimal place, the final answer becomes 396.8 pounds.