Last updated July 28, 2026
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SI Base Units
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||
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Quantity Name Symbol
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Name
|
Symbol
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|
length
|
meter
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m
|
|
mass
|
kilogram
|
kg
|
|
time
|
second
|
s
|
|
electric current
|
ampere
|
A
|
|
thermodynamic temperature*
|
kelvin
|
K
|
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luminous intensity
|
candela
|
cd
|
|
amount of substance
|
mole
|
mol
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