Conversion guide
Kilograms to pounds: accurate mass conversion
Convert mass from kilograms to pounds for luggage, shipping, fitness, and product specifications. The calculation uses the exact international avoirdupois-pound definition rather than a rounded 2.2 shortcut.
Formulas in both directions
lb = kg ÷ 0.45359237kg = lb × 0.45359237Divide kilograms by exactly 0.45359237. The resulting multiplier is approximately 2.2046226218 pounds per kilogram.
Common conversion values
| kilogram (kg) | avoirdupois pound (lb) |
|---|---|
| 0.5 kg | 1.102311311 lb |
| 1 kg | 2.204622622 lb |
| 2 kg | 4.409245244 lb |
| 5 kg | 11.02311311 lb |
| 10 kg | 22.04622622 lb |
| 20 kg | 44.09245244 lb |
| 25 kg | 55.11556555 lb |
| 50 kg | 110.2311311 lb |
| 75 kg | 165.3466966 lb |
| 100 kg | 220.4622622 lb |
| 150 kg | 330.6933933 lb |
| 200 kg | 440.9245244 lb |
Worked real-world examples
Example 1
An airline bag has a mass of 23 kg. Convert it to pounds before checking a US carrier limit.
23 ÷ 0.45359237 = 50.706320323 kg = 50.7063203 lbExample 2
A fitness record lists 70 kg. Convert the entry to pounds for an imperial training log.
70 ÷ 0.45359237 = 154.323583570 kg = 154.3235835 lbWhat the units mean
kilogram (kg)
The kilogram is the SI base unit of mass. Everyday metric weights, shipment mass, and scientific measurements are commonly expressed in kilograms.
avoirdupois pound (lb)
The international avoirdupois pound is a unit of mass defined as exactly 0.45359237 kilogram. Its symbol is lb.
Where these units are used
Kilograms are standard across most countries. Pounds are common for body weight, packaged goods, and freight in the United States and are also familiar in the United Kingdom.
Important distinctions
This page converts mass. In physics, pound-force measures force and is a different quantity. UK body-weight discussions may combine stones and pounds rather than use decimal pounds alone.
Accuracy and rounding
Luggage and body-weight displays usually use one decimal pound. Shipping charges can depend on carrier rules, so apply the carrier's required rounding only after conversion.
Frequently asked questions
Is 1 kilogram exactly 2.2 pounds?
No. 2.2 lb is a useful approximation; 1 kg is about 2.2046226218 lb.
What kind of pound does this page use?
It uses the international avoirdupois pound, the standard pound for body mass, luggage, and ordinary goods.
Are pounds mass or force?
In this conversion, lb is a mass unit. Pound-force is written lbf and requires a force conversion.
How do I convert pounds back to kilograms?
Multiply pounds by exactly 0.45359237.