A metric system simply means the basic units that are used in measurement such as meter, kilogram, second, etc.
Your question is incomplete as you didn't provide the items to be converted. Therefore, an overview of the metric system will be given. The <em>metric system </em>is the system of measurement.
It should be noted that for length, the metric system include meter, centimeter, millimeter, and kilometer. The metric system for weight will be kilograms and grams. The metric system for capacity will be liter and millimeter. The metric system for to include hours, minutes, and seconds.
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