How many pounds is 1 kg?
1 kg is 2.20462 pounds.
Mass and weight conversion
Kilograms to pounds converter calculator
Last updated:
1 kilogram equals 2.20462 pounds. To convert, multiply kilograms by 2.20462. 70 kg is about 154 lbs; 100 kg is 220.5 lbs. The conversion is exact: 1 lb = 0.45359237 kg by international agreement.
Featured kilograms to pounds converter answer
Kilograms
1 kg
pounds converter
2.2046 lbs
Formula: 1 kilogram = 2.20462 pounds. Open the live calculator to convert any value.
Formula
1 kilogram = 2.20462 pounds
Since 1959, the international avoirdupois pound has been fixed at exactly 0.45359237 kilograms. The conversion factor 2.20462 is the reciprocal, accurate to six significant figures.
Common values
| From | To |
|---|---|
| 1 kg | 2.2046 lbs |
| 5 kg | 11.0231 lbs |
| 10 kg | 22.0462 lbs |
| 25 kg | 55.1156 lbs |
| 50 kg | 110.2311 lbs |
| 60 kg | 132.2774 lbs |
| 70 kg | 154.3236 lbs |
| 80 kg | 176.3698 lbs |
| 90 kg | 198.4160 lbs |
| 100 kg | 220.4623 lbs |
Background
The kilogram was the last SI base unit defined by a physical artifact (a platinum-iridium cylinder near Paris). In 2019, it was redefined in terms of the Planck constant, making the definition independent of any single object. The pound traces back through medieval English commerce.
Common use cases
- Convert product or parcel weights from kilograms to pounds for shipping.
- Translate body weight and gym loads between metric and imperial units.
- Compare supplier documentation when one source lists kilograms and another lists pounds.
Frequently asked questions
How many lbs is 70 kg?
70 kg is 154.32 pounds.
How do I convert kg to lbs quickly?
Multiply by 2.2 for a close estimate. For precise work (medical dosing, shipping documents), use 2.20462.
Is the pound-to-kilogram conversion exact?
Yes. The international avoirdupois pound is defined as exactly 0.45359237 kg.
What's the difference between mass and weight in kg and lbs?
Both kilograms and pounds are mass units in everyday use. In strict physics, a pound can also be a unit of force (lbf), and a kilogram of force is sometimes used informally. For everyday conversions like body weight, food, and shipping, treat them as mass.
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