Lbs to kg
One lb equals 0.45359237 kg. Type any number and the answer appears as you type — the maths happens in your browser.
Result
The same value in every unit
| Unit | Value |
|---|
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Common values
| lbs | kg |
|---|---|
| 1 lb | 0.45359237 kg |
| 2 lb | 0.90718474 kg |
| 3 lb | 1.3607771 kg |
| 5 lb | 2.2679619 kg |
| 10 lb | 4.5359237 kg |
| 15 lb | 6.8038856 kg |
| 20 lb | 9.0718474 kg |
| 25 lb | 11.339809 kg |
| 50 lb | 22.679619 kg |
| 100 lb | 45.359237 kg |
| 500 lb | 226.79619 kg |
| 1000 lb | 453.59237 kg |
How to use
- Enter the number of lbs in the field.
- The result in kg updates on every keystroke.
- Use the table below for the values people look up most often.
Formula and reverse conversion
The formula
To convert by hand: kg = lb ÷ 2.204622622. Going back the other way, one kg is 2.204622622 lb.
Where the odd number comes from
The factor is not a round number because the imperial units are defined through the metric ones by international agreement: an inch is exactly 25.4 mm and a pound is exactly 0.45359237 kg. Everything else follows from those definitions.
kg = lb ÷ 2.204622622
Frequently asked questions
How many kg are in one lbs?
One lb is 0.45359237 kg.
How do I convert lbs to kg?
Multiply by the factor: kg = lb ÷ 2.204622622.
Is the result exact?
The factors are the exact legal definitions, and up to ten significant digits are kept in the answer. Rounding happens only in the display.
How do I convert kg back to lbs?
One kg is 2.204622622 lb — or open the reverse page linked below.