Unit of Measurement

Definition

A standard quantity used to express and compare measurements. In chemistry, common units include meters for length, grams for mass, and seconds for time.

Related terms

Metric System: An international decimal-based system of measurement.

SI Units: The International System of Units; it's an updated version of the metric system and is now widely used worldwide for scientific measurements.

Conversion Factor:

A ratio derived from the equality between two different units that can be used to convert from one unit to another.