# 100mg = How Many Grams?

This conversion is very straight forward to calculate as it is a simple case of moving the decimal point to the left. In this case since it is converting a milligram to a gram you would move the decimal point 3 places left; So, 100 mg equals how many grams? 100 milligrams = 0.1 grams.  Many exams questions will include conversion such as 100 mg convert to grams.  Here is some more information to help understand the relationship between grams and milligrams.

'Milli' is Latin, meaning thousand; similarly tri means three, quad means four and oct represents eight. There are many instances of the use of 'milli' in modern English; for instance, Millennium (a thousand years), millipede (a thousand of legs) etc. In maths, this theory explains logic in many areas and allows for much quicker calculation (as is the case with the original question here). Here are some other mathematical examples and their meanings;

- Millisecond - this is a thousandth of a second; so there are 1000 milliseconds in one second
- Millimetre - again there are a thousand millimetres in one metre; so 1000 millimetres equals one meter
- Millilitre - one thousandth of a litre
- And finally, million - This is slightly different to the theory in the examples above which would suggest the word million refers to the number 1000. It raises the question, why do we call millions, millions? The answer is, in fact, that a million is so called as it is actually one thousand thousands.

Converting of 'mill-' measurements therefore, is fairly straight forward, and is simply a case of dividing by one thousand. Similarly, 'cent-' measurements are equally as easy to convert as they use the same rule but by 100 instead of 1000.
thanked the writer.
1000mg=1g
1mg=1/1000g
100mg=(1/1000)*100
=0.1g
thanked the writer.
In the Metric System, the abbreviation "M" (capital m) means "Mega" or "million". So, "100 Mg" would mean "100 million grams", or 100,000,000 g.

This is a huge number. I wonder if you might have meant "mg"? In the metric system, "m" (small m) means "milli" or a thousandth.

In this case, "100 mg" means "100 thousandths" or 0.1 grams.
thanked the writer.
.1
thanked the writer.
1g
thanked the writer.
100mg = how many grams
thanked the writer.
0.1
thanked the writer.
100mcg=how many mg
thanked the writer.
100 milligrams is equal to 0.1 grams.
thanked the writer.
.1g
thanked the writer.
I believe it's .1
thanked the writer.
400
thanked the writer.