There is no such measure as a macrogram, although there is a microgram.
Having said that, a microgram is a measure of mass. A millimetre is a measure of length or distance. The two measure different things and,according to basic principles of dimensional analysis, conversion from one to the other is not valid.
The question is like asking about the mass of your walk to school.
Chat with our AI personalities
There are 1,000,000 macrograms in 1 kilogram. A macrogram is one-millionth of a gram, and since there are 1,000 grams in a kilogram, you multiply 1,000 grams by 1,000,000 macrograms per gram to get the total.
One millimeter is 0.000001km
There are 1,000 micrometers in one millimeter.
1 kilometer = 1000000 millimeter
1 micrometer = .001 millimeter 1000 micrometers in one millimeter (mm) = 10^-3 (um) = 10^-6