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 42 pounds into kilograms we have to multiply 42 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

42 lb → M_(kg)

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

M_(kg) = 42 lb × 0.45359237 kg

M_(kg) = 19.05087954 kg

The final result is:

42 lb → 19.05087954 kg

We conclude that 42 pounds is equivalent to 19.05087954 kilograms:

42 pounds = 19.05087954 kilograms

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilogram is equal to 0.052491014805923 × 42 pounds.

Another way is saying that 42 pounds is equal to 1 ÷ 0.052491014805923 kilograms.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two pounds is approximately nineteen point zero five one kilograms:

42 lb ≅ 19.051 kg

An alternative is also that one kilogram is approximately zero point zero five two times forty-two 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