How many milligrams are in one gram?

One gram is equivalent to 1000 milligrams, which is a standard conversion used in the metric system. The metric system is based on powers of ten, making it straightforward to convert between units. In this case, since 'milli-' indicates one thousandth, there are 1000 milligrams in one gram. This understanding of metric prefixes is essential in fields such as science, medicine, and nutrition, where precise measurements are critical.