Pounds to Kilograms Converter (lbs to kg)
Enter a value in pounds to see it in kilograms instantly, or type in the kilograms box to convert the other way. 1 pound = 0.45359237 kilograms, and 1 kilogram = 2.2046226 pounds.
Divide pounds by 2.2 for a quick estimate, or multiply by 0.4536 for the exact figure. 150 lb is 68 kg and 200 lb is 90.7 kg. Lbs is simply the plural abbreviation of pound (from the Latin libra).
1 pound = 0.45359237 kilograms. Formula: kg = lb × 0.45359237 (or lb ÷ 2.2046226)
1 pound in all weight units
| Milligrams (mg) | 453,592.37 |
| Grams (g) | 453.59237 |
| Kilograms (kg) | 0.45359237 |
| Metric tons (t) | 0.0004535924 |
| Ounces (oz) | 16 |
| Stones (st) | 0.071428571 |
| US tons (US ton) | 0.0005 |
| UK tons (UK ton) | 0.0004464286 |
| Newtons (N) | 4.4482216 |
How to convert pounds to kilograms
kg = lb × 0.45359237
Multiply the number of pounds by 0.45359237. To convert kilograms back to pounds, multiply by 2.2046226, or divide by 0.45359237.
Example: 5 pounds × 0.45359237 = 2.2679619 kilograms.
Pounds to Kilograms conversion table
| Pounds | Kilograms |
|---|---|
| 1 lb | 0.45359237 kg |
| 2 lb | 0.90718474 kg |
| 3 lb | 1.3607771 kg |
| 4 lb | 1.8143695 kg |
| 5 lb | 2.2679619 kg |
| 6 lb | 2.7215542 kg |
| 7 lb | 3.1751466 kg |
| 8 lb | 3.628739 kg |
| 9 lb | 4.0823313 kg |
| 10 lb | 4.5359237 kg |
| 12 lb | 5.4431084 kg |
| 15 lb | 6.8038856 kg |
| 20 lb | 9.0718474 kg |
| 25 lb | 11.339809 kg |
| 30 lb | 13.607771 kg |
| 40 lb | 18.143695 kg |
| 50 lb | 22.679619 kg |
| 60 lb | 27.215542 kg |
| 70 lb | 31.751466 kg |
| 75 lb | 34.019428 kg |
| 80 lb | 36.28739 kg |
| 90 lb | 40.823313 kg |
| 100 lb | 45.359237 kg |
| 200 lb | 90.718474 kg |
| 250 lb | 113.39809 kg |
| 500 lb | 226.79619 kg |
| 1,000 lb | 453.59237 kg |
| Kilograms | Pounds |
|---|---|
| 1 kg | 2.2046226 lb |
| 2 kg | 4.4092452 lb |
| 3 kg | 6.6138679 lb |
| 4 kg | 8.8184905 lb |
| 5 kg | 11.023113 lb |
| 6 kg | 13.227736 lb |
| 7 kg | 15.432358 lb |
| 8 kg | 17.636981 lb |
| 9 kg | 19.841604 lb |
| 10 kg | 22.046226 lb |
| 12 kg | 26.455471 lb |
| 15 kg | 33.069339 lb |
| 20 kg | 44.092452 lb |
| 25 kg | 55.115566 lb |
| 30 kg | 66.138679 lb |
| 40 kg | 88.184905 lb |
| 50 kg | 110.23113 lb |
| 60 kg | 132.27736 lb |
| 70 kg | 154.32358 lb |
| 75 kg | 165.3467 lb |
| 80 kg | 176.36981 lb |
| 90 kg | 198.41604 lb |
| 100 kg | 220.46226 lb |
| 200 kg | 440.92452 lb |
| 250 kg | 551.15566 lb |
| 500 kg | 1,102.3113 lb |
| 1,000 kg | 2,204.6226 lb |
About the pound and the kilogram
The pound (lb, plural lbs) is exactly 0.45359237 kg under the 1959 international agreement. Body weight, groceries and gym plates in the US use pounds.
The kilogram is the SI base unit of mass, defined since 2019 in terms of the Planck constant. Body weight, groceries and luggage use kilograms in most of the world.
Frequently asked questions
How many kilograms are in a pound?
There are 0.45359237 kilograms in 1 pound. For any number of pounds, multiply by 0.45359237.
How many pounds are in a kilogram?
1 kilogram = 2.2046226 pounds. To convert kilograms to pounds, multiply by 2.2046226 or divide by 0.45359237.
What is 5 pounds in kilograms?
5 pounds = 2.2679619 kilograms (5 × 0.45359237).
Is the lbs to kg conversion exact?
Yes. The 1959 international agreement defined the avoirdupois pound as exactly 0.45359237 kg, so the ounce, stone and ton factors are exact too. Newtons use standard gravity, 9.80665 m/s², which is also an exact defined value. Results are rounded to eight significant digits for display.
Related calculators
Last updated . Formulas are shown on the page and checked against the worked example.
Conversion factors are exact international definitions where one exists and standard reference values elsewhere. Results are rounded to 8 significant digits.