How many kg are in 1 pound?
Understand the Problem
The question is asking for the conversion factor between pounds and kilograms. Specifically, it seeks the number of kilograms that are equivalent to one pound.
Answer
0.4536 kg
Answer for screen readers
1 pound is equal to approximately 0.4536 kilograms.
Steps to Solve
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Recall conversion factor
The standard conversion factor between pounds and kilograms is:
$1 \text{ pound} = 0.4535924277 \text{ kilograms}$
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Round for practical use
For most practical purposes, this is rounded to four decimal places:
$1 \text{ pound} \approx 0.4536 \text{ kilograms}$
1 pound is equal to approximately 0.4536 kilograms.
More Information
This conversion factor is based on the international avoirdupois pound, which is the standard pound used in most countries today. The exact relationship was established in 1959 when several English-speaking countries agreed to define the pound in terms of the kilogram.
Tips
A common mistake is to confuse this with the reverse conversion (kilograms to pounds). Remember, there are more pounds than kilograms for a given weight, so 1 pound is less than 1 kilogram.
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