Pounds to Kilograms Converter
1 pound = 0.453592 kilograms.
Enter a value
Result
1 pound =
0.453592 kg
1 lb × 0.453592 = 0.453592 kg
1 lb = 0.45359237 kg exactly
The working
- 1. Convert 1 lb to kilograms: 1 × 0.453592 = 0.453592.
- 2. Convert to kg: 0.453592 ÷ 1 = 0.453592.
1 lb in every unit
Everyday weights
- Bag of sugar
- 1 kg
- Newborn baby
- 3.5 kg
- Adult (average)
- 70-80 kg
- Small car
- 1,000 kg
Conversion table
Pounds to Kilograms
| Pounds | Kilograms |
|---|---|
| 1 | 0.45359 |
| 2 | 0.90718 |
| 5 | 2.268 |
| 10 | 4.5359 |
| 20 | 9.0718 |
| 50 | 22.68 |
| 100 | 45.359 |
| 120 | 54.431 |
| 140 | 63.503 |
| 150 | 68.039 |
| 160 | 72.575 |
| 180 | 81.647 |
| 200 | 90.718 |
| 220 | 99.79 |
| 250 | 113.4 |
Kilograms to Pounds
| Kilograms | Pounds |
|---|---|
| 1 | 2.2046 |
| 2 | 4.4092 |
| 5 | 11.023 |
| 10 | 22.046 |
| 20 | 44.092 |
| 50 | 110.23 |
| 100 | 220.46 |
| 120 | 264.55 |
| 140 | 308.65 |
| 150 | 330.69 |
| 160 | 352.74 |
| 180 | 396.83 |
| 200 | 440.92 |
| 220 | 485.02 |
| 250 | 551.16 |
Formula and worked example
kilograms = pounds × 0.45359237 (1 pound is exactly 0.45359237 kg).
Convert 150 pounds to kilograms: 150 × 0.45359237 = 68.0389 kg.
When you need this
Body weight, gym plates and luggage limits flip between pounds and kilograms constantly. US recipes, shipping quotes and baby weights are another everyday reason to convert.
Questions people ask
How many kilograms are in a pound?
One pound is 0.45359237 kilograms. 1 pound is exactly 0.45359237 kg.
How do I convert pounds to kilograms?
Multiply the number of pounds by 0.45359237, or divide by 2.2046226.
What is 120 lb in kg?
120 pounds is 54.4311 kilograms.
How do I convert kilograms back to pounds?
Multiply by 2.2046226: one kilogram is 2.2046226 pounds.
Related conversions
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.
Spotted a mistake? Tell us and we'll check it. How we check our calculators