Look in the link below.
You can't convert that. In general, you can only convert from one unit to another of the same kind, for example, one unit of mass to another unit of mass.
Meters are a unit of length, kilograms are a unit of mass, you cannot convert one from another
You don't really "convert a unit of measurement"; you convert from one unit to another. The two - "from" and "to" are always required.
That means that if you have a measurement in one unit, you convert it to another unit. For example, if a measurement is given in millimeters, you may need to convert it to meters.
There isn't any one general answer. It depends on what unit you want to convert to what other unit.
If you mean, convert µg to cm², that conversion doesn't make sense. You can only convert units that measure the same kind of thing, for example, one unit of mass to another unit of mass.
You can't convert that. You can convert from one unit of length to another, or from one unit of area to another, but you can't convert between units of length and area.
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.
You can't convert that. You can convert from one linear unit to another linear unit, or from one square unit to another square unit, but not between linear units and square units.
By dividing the multiple by the root unit.
You can't. One is a unit of mass the other is length.
Impossible to convert a length unit to a mass unit!!!