måleenhet

Måleenhet is a term used to describe a unit of measurement, a standard quantity that allows the expression, comparison, and calculation of physical properties such as length, mass, time, and electric current. In practice, måleenheter are the building blocks of measurement in science, engineering, commerce, and daily life.

The International System of Units (SI) is the modern global framework for measurement. It defines seven base units from which many other units are derived: metre for length, kilogram for mass, second for time, ampere for electric current, kelvin for thermodynamic temperature, mole for the amount of substance, and candela for luminous intensity. Derived units include newton for force, joule for energy, watt for power, and pascal for pressure, formed by combining base units with standard prefixes such as kilo-, milli-, and micro-.

In Sweden and many other countries, measurement and calibration are regulated to ensure accuracy and traceability to SI standards. National metrology institutes oversee standards, verification, and legal metrology, supporting fair trade and safety. This ensures that measurements made in laboratories, industry, and commerce can be referenced to a common, internationally recognized system.

While SI units dominate scientific and industrial contexts, non-SI units persist in everyday use, such as liters for volume and degrees Celsius for temperature. In temperature measurement, the kelvin is the SI base unit, while the Celsius scale remains common for practical purposes, with Celsius defined as a offset from kelvin (−273.15). Overall, måleenheter provide a universal language for quantitative description across disciplines.