Kilograms to pounds
Multiply kilograms by 2.2046 to get pounds.
10 kg = 22.0462 lb
How to convert kilograms to pounds
The pound is exactly 0.45359237 kilograms — the international avoirdupois pound fixed by the 1959 agreement of the US, UK and Commonwealth. The kilogram is the SI base unit of mass, fixed since 2019 by defining the Planck constant as exactly 6.62607015×10⁻³⁴ J·s.
Worked example — 10 kg: 10 × 2.2046 = 22.0462 lb. (22 lb 0.7 oz)
Kilograms to pounds table
| Kilograms | Pounds | Pounds and oz |
|---|---|---|
| 0.5 kg | 1.1023 lb | 1 lb 1.6 oz |
| 1 kg | 2.2046 lb | 2 lb 3.3 oz |
| 2 kg | 4.4092 lb | 4 lb 6.5 oz |
| 5 kg | 11.0231 lb | 11 lb 0.4 oz |
| 10 kg | 22.0462 lb | 22 lb 0.7 oz |
| 25 kg | 55.1156 lb | 55 lb 1.8 oz |
| 50 kg | 110.2311 lb | 110 lb 3.7 oz |
| 75 kg | 165.3467 lb | 165 lb 5.5 oz |
| 100 kg | 220.4623 lb | 220 lb 7.4 oz |
Reverse and related
About kilograms and pounds
Kilogram (kg)
1 kg = 2.2046 lbDefinition. The SI base unit of mass, fixed since 2019 by defining the Planck constant as exactly 6.62607015×10⁻³⁴ J·s
History and origin
The kilogram began in 1795 as the mass of one litre of water at the melting point of ice, and from 1889 was embodied in a platinum-iridium cylinder kept near Paris, the International Prototype Kilogram. In 2019 the SI retired that physical artefact and redefined the unit through a fixed value of the Planck constant, leaving its size unchanged.
Current use
It is the base unit of mass almost everywhere on Earth. The main everyday exception is the United States, where people weigh in pounds even though US science, medicine and industry work in kilograms.
Source: BIPM, The International System of Units (SI), 9th ed. (2019)
Pound (lb)
1 lb = 0.453592 kgDefinition. Exactly 0.45359237 kilograms — the international avoirdupois pound fixed by the 1959 agreement of the US, UK and Commonwealth
History and origin
The pound descends from the Roman libra, whose name still gives the symbol lb. Many regional pounds circulated for centuries before the 16-ounce avoirdupois pound became the English-speaking standard for trade. In 1959 the United States, the United Kingdom and other Commonwealth countries signed the international yard and pound agreement, fixing the pound at exactly 0.45359237 kilograms.
Current use
The pound is the everyday unit of weight in the United States, and informally in the United Kingdom, for body weight, food packaging and shipping, while most of the world states the same weights in kilograms.
Source: NIST Handbook 44, Appendix C §5 (Tables of Equivalents)
Where people use this
Kilograms: body weight outside the US, groceries and produce, checked-luggage limits. Pounds: body weight in the US, gym plates, shipping weights. A 23 kg checked-bag limit is 50.7 lb, and a 68 kg adult is about 150 lb.
Every value is carried to full double precision; the display is rounded.
Sources: NIST Handbook 44, Appendix C §5 (Tables of Equivalents); BIPM, The International System of Units (SI), 9th ed. (2019).
Questions people ask
How many pounds is 1 kg?
One kilogram is 2.2046 pounds. Multiply any number of kilograms by 2.2046 to get pounds, so 5 kg is about 11.02 lb and 10 kg about 22.05 lb.
Is 1 kg equal to 2.2 pounds?
Almost. One kilogram is 2.2046 pounds, so 2.2 is a handy rounding that runs about 0.2% low. It is fine for everyday use, but on 100 kg it undercounts by nearly half a pound.
How do you convert kg to lbs?
Multiply the kilograms by 2.2046. For a quick mental estimate, double the kilograms and add about 10% — 30 kg becomes 60 + 6 = 66 lb, and the exact figure is 66.1 lb.
Is a kilogram heavier than a pound?
Yes, a kilogram is about 2.2 times heavier than a pound. One pound is 0.454 kg, so it takes a little over two pounds to make one kilogram.
How many kg is 150 pounds?
150 pounds is about 68 kg (150 ÷ 2.2046). This is a common bodyweight conversion; the pounds-to-kilograms page has the full table.