The Metric system is a decimal-based system of measurement used worldwide. It includes units such as meters for length, liters for volume, and grams for mass. The system is designed to be simple and consistent, making it easier to convert between units by using powers of ten. Adopted by most countries, the Metric system facilitates international trade and scientific communication. It is based on standard units, which helps ensure accuracy and uniformity in measurements across different fields, including science, engineering, and everyday life.