# How many milligrams per gram?

Gram and milligram are measures of mass. To understand how many milligrams per gram, we turn to the definitions of concepts.

Gram - a unit of measurement of mass, one of the mainin the system "centimeter-gram-second", physically equal to the mass of 1 cubic meter. see water chemically pure in composition at its highest density. Abbreviated as - r.

The prefix "milli-" (from Latin Mille) denotes a thousandth of the basic value. A milligram is a unit of mass measurement, equal in value to a thousandth of a gram. The abbreviated designation is mg.

Taking into account the above, it is easy to answer the question about how many milligrams in 1 gram. 1 g. = 1000 mg. 1 mg. = 0.001 g.

For example:

- 840 g. = 840 x 1000 = 840,000 mg.
- 155 mg. = 155 x 0.001 = 0.155 g.