While the International System of Units (SI) is used throughout the world in all fields, many non-SI units continue to be used in the scientific, technical...

The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now...

SI base unit – One of the seven units of measurement that define the metric system 2005–2019 definitions of the SI base units Non-SI units mentioned in...

a metric ton in the United States to distinguish it from the non-metric units of the short ton (United States customary units) and the long ton (British...

hoc non-metric units are used, such as the solar radius, astronomical units, light years, and parsecs; the astronomical unit is mentioned in the SI standards...

kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units which is the energy delivered...

The hectare (/ˈhɛktɛər, -tɑːr/; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, 10,000 square meters...

(IAU) also lists it under "Non-SI units and symbols whose continued use is deprecated". Units derived from the bar include the megabar (symbol: Mbar), kilobar...

quantities and units. SI units predominate in most fields, and continue to increase in popularity at the expense of Gaussian units. Alternative unit systems...

the SI derived unit name "cubic centimetre". It is a commonly used measure, especially in medicine, cooking and automotive engineering. Other units may...