Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
The metric system is a decimal-based system of measurement used internationally for scientific and everyday measurements. Its units include meters for length, kilograms for mass, and seconds for time.
5 Must Know Facts For Your Next Test
The metric system is based on powers of ten, making it easy to convert between units.
The base unit of length in the metric system is the meter (m).
The base unit of mass in the metric system is the kilogram (kg).
Time in the metric system is measured in seconds (s).
Prefixes like kilo-, centi-, and milli- denote different multiples or fractions of base units.
Review Questions
Related terms
SI Units: International System of Units derived from the metric system, including seven base units such as meter, kilogram, and second.
Decimal System: A numerical system based on ten; foundational to the structure of the metric system.
Conversion Factor: A ratio used to convert from one unit to another within or between measurement systems.