How many kg is a 145-pound woman? 1 pound=0.45 kg
The Correct answer and Explanation is:
To convert a weight from pounds to kilograms, you can use the conversion factor that 1 pound is approximately equal to 0.45 kilograms. In this case, you want to convert 145 pounds to kilograms.
Calculation
The conversion can be done using the following formula:
[
\text{Weight in kg} = \text{Weight in pounds} \times \text{Conversion factor}
]
Substituting the values:
[
\text{Weight in kg} = 145 \, \text{pounds} \times 0.45 \, \text{kg/pound}
]
Calculating this:
[
\text{Weight in kg} = 145 \times 0.45 = 65.25 \, \text{kg}
]
Thus, a 145-pound woman weighs 65.25 kilograms.
Explanation
Weight conversion is a common requirement in many fields, including healthcare, fitness, and international travel, where different units are used. The pound (lb) is predominantly used in the United States and a few other countries, while the kilogram (kg) is the standard unit of measurement for mass in the metric system, which is used almost universally across the globe.
When converting from pounds to kilograms, understanding the conversion factor is essential. The conversion factor of 0.45 kg per pound is derived from the fact that one pound is approximately equal to 0.453592 kg. However, for simplicity in many practical applications, it is rounded to 0.45.
This conversion process is crucial in contexts such as medical dosing, where accurate weight measurement can impact treatment efficacy and safety. For example, in prescribing medications, dosages often depend on body weight. If a healthcare provider prescribes a medication based on a patient’s weight in pounds, the nurse or pharmacist may need to convert that weight into kilograms to ensure proper dosing.
Additionally, in fitness and nutrition, individuals often track their weight in different units, necessitating conversion for accurate calorie counting and workout planning. Thus, knowing how to convert pounds to kilograms is a valuable skill, ensuring that individuals can effectively monitor their health and fitness goals.