Use 1 pound = 0.45359237 kilograms. Multiply pounds by 0.45359237 to convert to kilograms; divide kilograms by 0.45359237 (or multiply by about 2.20462) to convert to pounds. NIST lists this exact customary-mass conversion.
| Pounds (lb) | Kilograms (kg), approx. |
|---|---|
| 3 lb | 1.36 kg |
| 20 lb | 9.07 kg |
| 50 lb | 22.68 kg |
| 100 lb | 45.36 kg |
| 200 lb | 90.72 kg |
| 2,200 lb | 997.90 kg |
Values are rounded to two decimals unless additional precision is shown.
| Kilograms (kg) | Pounds (lb), approx. |
|---|---|
| 3 kg | 6.61 lb |
| 10 kg | 22.05 lb |
| 20 kg | 44.09 lb |
| 50 kg | 110.23 lb |
| 100 kg | 220.46 lb |
| 200 kg | 440.92 lb |
Multiply kilograms by about 2.20462 to get pounds. The pound in this chart is the international avoirdupois pound used for customary weight conversions.
200 × 0.45359237 = 90.718474 kg, or about 90.72 kg.
50 ÷ 0.45359237 = 110.231131 lb, or about 110.23 lb.
200 ÷ 0.45359237 = 440.924524 lb, or about 440.92 lb.
These are unit conversions. They do not describe an object's volume or determine how heavy it feels to a particular person.
There are 16 ounces in 1 pound. For example, 200 pounds equals 3,200 ounces. To convert an ounce weight to pounds, divide by 16. To convert pounds to kilograms, multiply by 0.45359237.
Keep the quantities distinct: ounces and pounds in this context measure mass/weight in everyday U.S. use, while a kilogram is the SI unit of mass. A unit conversion preserves the amount; it does not change the object.