1 pound equals approximately 0.4536 kilograms
Converting 1 pound to kg results in about 0.4536 kg. This is because 1 pound is defined as exactly 0.45359237 kilograms, so the conversion involves a precise multiplication based on this fixed value.
Introduction
The pound is a unit of weight used mainly in the United States and some other countries, while the kilogram is the SI base unit for mass. Converting between them involves multiplying by a fixed conversion factor, which makes the process straightforward and accurate.
Conversion Tool
Result in kg:
Conversion Formula
The formula to convert pounds to kilograms is multiplying the number of pounds by 0.45359237. This value is the exact conversion factor, which works because a pound is defined as 0.45359237 kg. For example, converting 2 pounds involves 2 x 0.45359237 = 0.90718474 kg.
Conversion Example
- Convert 5 pounds:
- Multiply 5 by 0.45359237.
- 5 x 0.45359237 = 2.26796185 kg.
- Result: approximately 2.26796 kg.
- Convert 10 pounds:
- 10 x 0.45359237 = 4.5359237 kg.
- Result: about 4.53592 kg.
- Convert 0.5 pounds:
- 0.5 x 0.45359237 = 0.226796185 kg.
- Result: approximately 0.22680 kg.
- Convert 20 pounds:
- 20 x 0.45359237 = 9.0718474 kg.
- Result: around 9.07185 kg.
Conversion Chart
This chart shows the conversion of pounds from -24.0 to 26.0 into kg. Use it to quickly see approximate weight in kg for given pounds.
| Pounds | Kilograms |
|---|---|
| -24.0 | -10.8862 |
| -20.0 | -9.0718 |
| -15.0 | -6.8034 |
| -10.0 | -4.5359 |
| -5.0 | -2.2679 |
| 0.0 | 0 |
| 5.0 | 2.2679 |
| 10.0 | 4.5359 |
| 15.0 | 6.8034 |
| 20.0 | 9.0718 |
| 25.0 | 11.3398 |
| 26.0 | 11.7932 |
To read the chart, find the pound value in the first column, then look across to see the corresponding kg value in the second column. It helps quickly estimate weights without calculations.
Related Conversion Questions
- How many kg are in 1 pound of body weight?
- What is the kilogram equivalent for 1 pound of produce?
- How do I convert 1 pound to kg for shipping purposes?
- Is 1 pound equal to 0.45 kg or 0.453 kg?
- What is the weight in kg of 1 pound of gold?
- How to convert pounds to kg when measuring food ingredients?
- Can I use the same formula to convert any weight from pounds to kg?
Conversion Definitions
Pound
The pound is a unit of weight mainly used in the US, defined as exactly 0.45359237 kilograms. It originated from the Roman libra and is now part of the imperial and US customary measurement systems.
Kilogram
The kilogram is the SI base unit of mass, officially defined as the mass of the international prototype in Paris. It equals 1000 grams and is used worldwide for scientific and everyday weight measurements.
Conversion FAQs
Why is the pound exactly 0.45359237 kg?
This precise value was established by international agreement to standardize measurements. It is based on the historical definition of the pound and has been fixed to ensure consistency in weight conversions globally.
How accurate is the conversion from pounds to kg?
The conversion uses a fixed factor of 0.45359237, making it very accurate for most practical purposes. Small discrepancies only arise in approximation, but for typical uses, the value is precise enough.
Can I convert pounds to other metric units like grams or milligrams?
Yes, by multiplying the pounds value by 453.59237, you get grams, since 1 kg = 1000 grams. For milligrams, multiply by 1,000,000, making conversions straightforward with the same base factor.