The average weight of an adult human is 62 kg. What is the weight in pounds?
The correct answer and explanation is:
To convert the average weight of an adult human from kilograms to pounds, use the conversion factor:
1 kilogram = 2.20462 pounds
Given:
- Weight = 62 kilograms
Calculation:
62 kg × 2.20462 lb/kg = 136.68644 pounds
Answer: The weight is approximately 136.69 pounds.
Explanation:
To convert between metric and imperial units, multiplication by a standard conversion factor is used. The metric system uses kilograms for mass, while the imperial system uses pounds. The universally accepted conversion rate from kilograms to pounds is 2.20462. This means that every kilogram equals approximately 2.20462 pounds.
When solving conversion problems, it is important to maintain the proper units throughout the calculation. Starting with 62 kilograms and multiplying by the conversion factor allows you to cancel out the kilogram unit and end up with pounds. This ensures dimensional consistency and confirms that the mathematical operation is applied correctly.
In scientific and everyday applications, accurate unit conversion is essential. For example, medical professionals in regions using the imperial system need to convert metric weight values for prescriptions or equipment calibration. Similarly, travelers may need to convert weights when interpreting airline baggage limits, as different countries use different measurement systems.
While the exact answer is 136.68644 pounds, rounding to two decimal places is common in practical contexts, resulting in 136.69 pounds. This level of precision is typically sufficient for general use.
Understanding how to use and apply conversion factors fosters better comprehension of global standards and supports effective communication, especially in fields like science, health care, and international logistics.