## Conversion formula

The conversion factor from pounds to kilograms is 0.45359237, which means that 1 pound is equal to 0.45359237 kilograms:

1 lb = 0.45359237 kg

To convert 4 pounds into kilograms we have to multiply 4 by the conversion factor in order to get the mass amount from pounds to kilograms. We can also form a simple proportion to calculate the result:

1 lb → 0.45359237 kg

4 lb → M(kg)

Solve the above proportion to obtain the mass M in kilograms:

M(kg) = 4 lb × 0.45359237 kg

M(kg) = 1.81436948 kg

The final result is:

4 lb → 1.81436948 kg

We conclude that 4 pounds is equivalent to 1.81436948 kilograms:

4 pounds = 1.81436948 kilograms

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilogram is equal to 0.55115565546219 × 4 pounds.

Another way is saying that 4 pounds is equal to 1 ÷ 0.55115565546219 kilograms.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four pounds is approximately one point eight one four kilograms:

4 lb ≅ 1.814 kg

An alternative is also that one kilogram is approximately zero point five five one times four pounds.

## Conversion table

### pounds to kilograms chart

For quick reference purposes, below is the conversion table you can use to convert from pounds to kilograms

pounds (lb) kilograms (kg)
5 pounds 2.268 kilograms
6 pounds 2.722 kilograms
7 pounds 3.175 kilograms
8 pounds 3.629 kilograms
9 pounds 4.082 kilograms
10 pounds 4.536 kilograms
11 pounds 4.99 kilograms
12 pounds 5.443 kilograms
13 pounds 5.897 kilograms
14 pounds 6.35 kilograms