## Conversion formula

The conversion factor from grams to kilograms is 0.001, which means that 1 gram is equal to 0.001 kilograms:

1 g = 0.001 kg

To convert 643 grams into kilograms we have to multiply 643 by the conversion factor in order to get the mass amount from grams to kilograms. We can also form a simple proportion to calculate the result:

1 g → 0.001 kg

643 g → M(kg)

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

M(kg) = 643 g × 0.001 kg

M(kg) = 0.643 kg

The final result is:

643 g → 0.643 kg

We conclude that 643 grams is equivalent to 0.643 kilograms:

643 grams = 0.643 kilograms

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilogram is equal to 1.5552099533437 × 643 grams.

Another way is saying that 643 grams is equal to 1 ÷ 1.5552099533437 kilograms.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty-three grams is approximately zero point six four three kilograms:

643 g ≅ 0.643 kg

An alternative is also that one kilogram is approximately one point five five five times six hundred forty-three grams.

## Conversion table

### grams to kilograms chart

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

grams (g) kilograms (kg)
644 grams 0.644 kilograms
645 grams 0.645 kilograms
646 grams 0.646 kilograms
647 grams 0.647 kilograms
648 grams 0.648 kilograms
649 grams 0.649 kilograms
650 grams 0.65 kilograms
651 grams 0.651 kilograms
652 grams 0.652 kilograms
653 grams 0.653 kilograms