Unit Converter
Convert From Pounds to Kilograms and Vice Versa
Pounds ↔ Kilograms
Type in either pounds or kilograms — it’ll convert to the other automatically!
⚖️ What is a Pound (lb)?
A pound is a unit of mass in the imperial and U.S. customary systems, commonly used in the United States for measuring body weight, food, and other everyday objects. 1 pound = 16 ounces = 0.453592 kilograms.
📐 What is a Kilogram (kg)?
A kilogram is the base unit of mass in the metric system and the International System of Units (SI). It's used globally for everything from groceries to science. 1 kilogram = 1,000 grams = 2.20462 pounds.
🧠 Quick Comparison
| Unit | Equivalent | Used In |
|---|---|---|
| 1 pound (lb) | 0.453592 kg | U.S., UK (body weight, food) |
| 1 kilogram (kg) | 2.20462 lb | Worldwide (science, trade, health) |
🧮 How to Convert
Pounds to Kilograms: kg = lb × 0.453592
Kilograms to Pounds: lb = kg × 2.20462
Example:
150 lb × 0.453592 = 68.04 kg
💡 Pro Tip
For a quick mental estimate: divide pounds by 2 and subtract 10% → that’s close to kilograms!
Example: 100 lb → 50 − 5 = ~45 kg
🎉 Did You Know?
The term "pound" comes from the Roman unit "libra"—that’s why it’s abbreviated as lb!
⚖️ Real-World Weight Examples
- 1 lb – A loaf of bread
- 2.2 lb (1 kg) – A bag of sugar or a liter of water
- 150 lb – Average adult weight
- 500 kg – A small motorcycle
📊 Pounds to Kilograms Conversion Chart
| Pounds (lb) | Kilograms (kg) |
|---|---|
| 1 | 0.4536 |
| 5 | 2.268 |
| 10 | 4.536 |
| 25 | 11.34 |
| 50 | 22.68 |
| 100 | 45.36 |
| 150 | 68.04 |