Answer
$1898 mg = 1.898\times10^{-3} kg$
Work Step by Step
To convert from mg to kg, we can first convert milligrams to grams.
1 mg = 1000 g
1898 mg = 1.898 g
Now we can convert to kilograms from grams.
1000 g = 1 kg
1.898 g = 0.001898 kg = $1.898\times10^{-3} kg$
