How many milligrams are in one gram?

One gram is equivalent to 1,000 milligrams because the metric system is based on powers of ten, making it straightforward to convert between units of measurement. In this case, "milli-" is a prefix that denotes a factor of one-thousandth, meaning 1 milligram (mg) is one-thousandth of a gram (g). Therefore, when you multiply 1 gram by 1,000, you get 1,000 milligrams. This is a fundamental conversion in the metric system and is essential for various applications in science, medicine, and nutrition where precise measurements are important.