What is the appropriate weight conversion factor from pounds to kilograms?

The appropriate weight conversion factor from pounds to kilograms is 2.2 because one kilogram is equivalent to approximately 2.2 pounds. This means that to convert pounds to kilograms, you divide the weight in pounds by 2.2. For example, if you have a weight of 10 pounds and want to convert it to kilograms, you would perform the calculation of 10 pounds divided by 2.2, resulting in approximately 4.54 kilograms.

The other conversion factors are incorrect for this specific calculation. For instance, using 2.5 or higher values would suggest that pounds are heavier than they actually are in kilograms, leading to inaccurate conversions. The factor of 3.0 is also significantly higher than the actual conversion, which further emphasizes the importance of using the correct factor to ensure precision in weight conversions, especially in medical and pharmaceutical contexts where accurate dosing is crucial.