How many milligrams are in 1 gram?

One gram is equivalent to 1000 milligrams because the metric system is based on powers of ten. In this system, the prefix "milli-" signifies one thousandth. Therefore, converting grams to milligrams involves multiplying by 1000, as there are 1000 milligrams in one gram. This conversion is straightforward and vital for accurate dosing in various medical and pharmaceutical applications. Understanding this fundamental connection helps ensure precise measurement in both prescription medications and over-the-counter products.