1 mg (milligram) is a thousandth of a gram. A gram is a measure of weight (or technically, of mass) - for example, sugar generally comes in bags of 1 kilogram (1,000 grams).
1 ml (millilitre) is a thousandth of a litre. A litre is a measure of volume - for example, Orange Juice is often packaged in 1 litre boxes.
So it's not possible to convert ml to mg directly - they are measurements of different things.
However ... a gram was originally defined (in 1795) as the weight of one cubic centimetre of water. 1 cubic centimetre is 1 millilitre.
Therefore, 0.2 ml of water is approximately 0.2 grams, which is 200 mg.
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There is no way to directly convert mg and ml. You would need to know the pill density in solid and liquid form before being able to convert.
This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Assuming fresh water at room pressure and temperature with density 1 gm/cc, then:
0.2 milligram would equal 0.2 milliliter, or
0.2 megagram would equal 0.2 x 106 milliliter
There are 1000 milligrams in one gram. Therefore, 0.2 grams is equal to 0.2 x 1000 = 200 milligrams.
4.25 micrograms is equal to 0.00425 milligrams.
There are 1,600 micrograms in 1.6 milligrams. This conversion is done by dividing the number of micrograms by 1000 to get the equivalent amount in milligrams.
There are 0.175 milligrams in 175 micrograms. This conversion is done by dividing the amount in micrograms by 1000 to get the equivalent amount in milligrams.
There are 1000 micrograms in a milligram. Therefore 235 micrograms is 0.235 milligrams.
To convert micrograms to milligrams, divide by 1,000. In this case, there are 0.42 milligrams in 420 micrograms.