Convert:165 lbs to kg
The correct answer and explanation is:
To convert 165 pounds (lbs) to kilograms (kg), you can use the conversion factor:
1 lb = 0.453592 kg.
To convert, multiply the number of pounds by the conversion factor:
165 lbs × 0.453592 = 74.84268 kg.
So, 165 pounds is approximately 74.84 kilograms.
The reason this conversion works is because of the fixed relationship between pounds and kilograms in the metric system. Pounds are part of the imperial system, which is commonly used in the United States and a few other countries, while kilograms are part of the metric system, which is used worldwide. The conversion factor of 0.453592 kg per pound ensures that the equivalent weight in kilograms is accurate.
When converting between units of mass or weight, the process involves multiplying by the appropriate conversion factor. In this case, because kilograms are the standard unit for mass in most of the world, it is important to be able to perform such conversions accurately. The metric system is based on powers of ten, making conversions simpler than those in the imperial system, which often requires different ratios for different units (e.g., inches to feet, or ounces to pounds).
For scientific calculations or when precision is needed, using the full conversion factor, 0.453592, ensures that the result is as accurate as possible. In everyday contexts, rounding the result to two decimal places, as in this case, is often sufficient for most practical purposes, such as when determining your weight in a country that uses kilograms instead of pounds.