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 9 pounds into kilograms we have to multiply 9 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

9 lb → M_(kg)

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

M_(kg) = 9 lb × 0.45359237 kg

M_(kg) = 4.08233133 kg

The final result is:

9 lb → 4.08233133 kg

We conclude that 9 pounds is equivalent to 4.08233133 kilograms:

9 pounds = 4.08233133 kilograms

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilogram is equal to 0.24495806909431 × 9 pounds.

Another way is saying that 9 pounds is equal to 1 ÷ 0.24495806909431 kilograms.

Approximate result

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

9 lb ≅ 4.082 kg

An alternative is also that one kilogram is approximately zero point two four five times nine 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