Mass & weight
Kilograms to pounds (and stone)
One kilogram is just over 2.2 pounds. Here’s the exact factor, a reference table, and how stones fit in.
Quick answer
Multiply kilograms by 2.20462 to get pounds. To reverse it, multiply pounds by 0.453592.
The formula
pounds = kilograms × 2.20462
kilograms = pounds × 0.453592
The international avoirdupois pound is defined as exactly 0.45359237 kg, so one kilogram is 1 ÷ 0.45359237 = 2.2046226… pounds.
Worked examples
- 70 kg → lb: 70 × 2.20462 = 154.3 lb.
- A 3.5 kg newborn: 3.5 × 2.20462 = 7.7 lb (about 7 lb 12 oz).
- 23 kg suitcase: 23 × 2.20462 = 50.7 lb.
| Kilograms | Pounds | Stone · lb |
|---|---|---|
| 1 | 2.205 | 0 st 2.2 |
| 5 | 11.02 | 0 st 11.0 |
| 10 | 22.05 | 1 st 8.0 |
| 50 | 110.2 | 7 st 12.2 |
| 70 | 154.3 | 11 st 0.3 |
| 100 | 220.5 | 15 st 10.5 |
Where it comes up
Most of the world weighs in kilograms; the US uses pounds, and the UK mixes pounds and stone for body weight. This conversion shows up with luggage limits, gym weights, recipes, and health and fitness apps.
Frequently asked questions
How many pounds is 1 kg?
One kilogram is about 2.20462 pounds. The pound is defined as exactly 0.45359237 kg.
What is 70 kg in pounds?
70 × 2.20462 = about 154.3 lb.
How do stones fit in?
In the UK, body weight is often given in stone: 1 stone = 14 pounds = 6.35 kg. So 70 kg ≈ 11 stone 0.3 lb.
What’s the airline luggage limit of 23 kg in pounds?
About 50.7 lb — which is why many airlines quote a 50 lb limit.