International System of Unit SI

System of units, based on the International System of Quantities, their names and symbols, including a series of prefixes and their names and symbols, together with rules for their use, adopted by the General Conference on Weights and Measures (CGPM).


Base quantity

Symbol for dimension

Name Name Symbol
Length metre m
Mass kilogram Kg
Time second s
Electric current ampere A
Ehermodynamic temperature kelvin K
Amount of substance mole mol
Luminous intensity candela cd
Accreditations Aster Accredia Accredia Accredia Tuv Nord Nadcap Crit
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