To find out how many kilograms equal a certain amount of pounds, click here to use our easy weight converter calculator to give precise unit conversions.

**Kilograms** are the main unit of weight within the **metric system **while **pounds** are used more commonly as a measure of weight in the **imperial system**. This **weight converter lb to kg** will help you to change quantities between the two measurements. Check out our other types of weight converter that you may need or use this **pound – kilogram calculator**.

## How to Convert from lb to kg?

Our **unit converter** is simple and easy to use, just enter the quantity of pounds you need to change into kilos in the **kg to lb converter** above and click ¨convert¨. Using a precise and accurate calculator, the conversion will appear below. To convert the other way, use our convert kilos to pounds tool.

## Formula to Convert from Pounds – Kilograms

To change from pounds to kilograms, the **conversion formula** is **lb / 2.205 = kg** and this is how our online calculator will convert the quantities for you. As an example, 5lb = 2.27kg or 20lb = 9.07kg.

## Measurements in Pounds

Similar to kilograms, **pounds** are used to measure things that can be lifted by people. Usually it is used to measure body weight and animals, but can sometimes be used as a unit of weight for food. Use our **pound to kilogram converter** above.

## Measurements in Kilograms

The unit of mass, **kgs**, are used to measure weighted objects that can be lifted by people. For example, body weight is sometimes measured in **kilograms** as well as food and everyday items such as books. This **conversion lb to kg** will help you make that calculation for you.

### How many is 1 Pound in kilograms?

**0.45 kilograms**

`(1lb = 0.45kg)`

### How many are 2 pounds in kilograms?

**0.91 kilograms**

`(2lb = 0.91kg)`

### How many are 3 pounds in kilograms?

**1.36 kilograms**

`(3lb = 1.36kg)`

### How many are 4 pounds in kilograms?

**1.82 kilograms**

`(4lb = 1.82kg)`

### How many are 5 pounds in kilograms?

**2.27 kilograms**

`(5lb = 2.27kg)`

### How many are 10 pounds in kilograms?

**4.54 kilograms**

`(10lb = 4.54kg)`

### How many are 15 pounds in kilograms?

**6.81 kilograms**

`(15lb = 6.81kg)`

### How many are 20 pounds in kilograms?

**9.08 kilograms**

`(20lb = 9.08kg)`

### How many are 25 pounds in kilograms?

**11.35 kilograms**

`(25lb = 11.35kg)`

### How many are 30 pounds in kilograms?

**13.62 kilograms**

`(30lb = 13.62kg)`

### How many are 50 pounds in kilograms?

**22.7 kilograms**

`(50lb = 22.7kg)`

### How many are 100 pounds in kilograms?

**45.4 kilograms**

`(100lb = 45.4kg)`

### How many are 200 pounds in kilograms?

**90.8 kilograms**

`(200lb = 90.8kg)`

### How many are 500 pounds in kilograms?

**227 kilograms**

`(500lb = 227kg)`

### How many are 1000 pounds in kilograms?

**454 kilograms**

`(1000lb = 454kg)`