Grams to Milligrams Conversion

How many mg in a gram?

1 Gram = 1000 milligrams (mg). 1 Milligram = 0.001 gram (g).

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Grams and milligrams (g to mg) mass units conversion factor is 1000. To find out how many milligrams in grams, multiply the gram value by 1000 or use the converter.

1 Gram = 1000 Milligrams

Gram and milligram are units of mass in metric system. In metric system, the prefix "milli" means "one thousandth of". If you replace "milli" with "1000", that makes 1 miiligram is "1000th" of a gram (1000 mg in a gram).

For example, to find out how many milligrams in a half gram, multiply the gram value by the conversion factor, 1/2 g * 1000 (mg in 1 g) = 500 mg in 1/2 gram.

Gram is a metric system unit of mass. It is one thousandth (1/1000) of a kilogram which is the metric system base unit. 1 grams equals to the mass of 1 mL (or 1 cubic centimeter) of water. The abbreviation for gram is "g".

Milligram is a unit of mass in metric system and it is mostly used in medicine and pharmacy. There are 1 000 000 (one million) mg in 1 kg (1000 grams in 1 kg * 1000 mg in 1 gram = 1 000 000). The abbreviation for milligram is "mg".

Create Custom Conversion Table
To create your own custom conversion table click "Create Table" botton. To change values, you may enter a "Start" value (1, 2.5, 5 etc), select a an "Increment" value (0.01, 5, 100 etc) and select an "Accuracy" value to round the result.