Use this free online calculator to convert Pound to Kilogram instantly. This common weight conversions conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Pound = 0.453592 Kilogram

1 Kilogram = 2.2046 Pound

Pound to Kilogram Conversion Formula

To convert Pound to Kilogram, multiply by 0.453592.

Kilogram = Pound × 0.453592

Pound = Kilogram × 2.2046

To convert Kilogram back to Pound, divide by 0.453592 (or multiply by 2.2046).

About These Units

About Pound

The pound is a traditional unit of mass or weight. The Romans used a pound (the libra pondo, "pound of weight") divided into 12 ounces. All the countries of western Europe used similar units, divided into 12 or 16 ounces, until the advent of the metric system. 12-ounce pounds were common in Italy and southern France, but in Spain and northern Europe 16-ounce pounds became the norm. The word libra is used for this unit in Italy, Spain, and Portugal; in France it is called the livre. Further north, the Latin word pondo ("weight") is the origin of the names of the English pound, Dutch pond, Danish pund, German pfund, and Russian funt. In England, two different "pound" units became standard. The unit now in general use in the United States is the avoirdupois pound, so-called from a French phrase avoir du poids, literally "goods of weight," indicating simply that the goods were being sold by weight rather than by volume or by the piece. The avoirdupois pound is divided into 16 ounces. By international agreement, one avoirdupois pound is equal to exactly 453.592 37 grams; this is exactly 175/144 = 1.215 28 troy pounds.

About Kilogram

The kilogram is the base unit of mass in the SI and MKS versions of the metric system. The kilogram is defined as the mass of the standard kilogram, a platinum-iridium bar in the custody of the International Bureau of Weights and Measures (BIPM) near Paris, France. Copies of this bar are kept by the standards agencies of all the major industrial nations, including the U.S. National Institute of Standards and Technology (NIST). One kilogram equals exactly 1000 grams, or about 2.204 622 6 pounds. By design, this is approximately the mass of a liter of water.

Pound to Kilogram Conversion Table

Pound	Kilogram	Kilogram	Pound
0.1	0.045359	0.1	0.220462
0.5	0.226796	0.5	1.1023
1	0.453592	1	2.2046
2	0.907185	2	4.4092
5	2.2680	5	11.0231
10	4.5359	10	22.0462
20	9.0718	20	44.0925
25	11.3398	25	55.1156
50	22.6796	50	110.2311
100	45.3592	100	220.4623
250	113.3981	250	551.1557
500	226.7962	500	1102.31
1000	453.5924	1000	2204.62

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