pounds to kilograms Converter
Type a value in pounds and get the answer in kilograms instantly — or convert the other way. The conversion uses the exact relationship 1 pounds = 0.453592 kilograms, the same formula used in textbooks and engineering references.
Pounds are the everyday weight unit in the US; kilograms are the scientific and international standard. Divide pounds by 2.2046 to get kilograms — or just type it in below.
How to use
- Type your value into the pounds box — the kilograms result updates as you type.
- To go the other direction, type into the kilograms box instead and read the pounds result.
- Copy the result with one tap, or scan the reference table below for common values.
Frequently asked questions
How do you convert pounds to kilograms?
Multiply the number of pounds by 0.453592. For example, 10 pounds = 4.53592 kilograms. The converter above does this for you and shows more decimal places than you will ever need.
How many kilograms are in one pounds?
Exactly 0.453592 kilograms. This is a fixed definition, not an approximation, so the conversion is exact at any scale.
Is this converter accurate for professional use?
Yes — it uses full double-precision arithmetic and the official pounds-to-kilograms factor, so results are reliable for schoolwork, cooking, fitness, travel and technical work.
Can I convert kilograms back to pounds?
Yes. The converter is two-way: just type in the second box and the first box updates instantly with the reverse conversion.