SI UNITS: BASE UNITS
Base units: The SI contains seven BASE UNITS that each
represent a different kind of physical quantity. These are
commonly used as a convention.
Base Quantity: Base unit: Symbol:
Amount of Moles mol
substance
Temperature Kelvin K
Mass Kilogram kg
Distance Meters m
Current Ampere (amps) A
Luminosity intensity candela cd
Time Seconds s
Derived units: Derived Units are created by mathematical
relationships between other Base Units and are expressed in a
combination of fundamental and base quantities
Derived quantities Derived units symbol
Area Meters squared m2
Volume Cubic meters m3
Mass density Kilo per cubic meter kg/m3
Specific volume Cubic meter per kilo m3/kg
Celsius temp Degrees Celsius C
Prefix: Metric units use a prefix, used for conversion from
or to an SI unit. Below is a chart illustrating how prefixes
are labeled in metric measurements.
Prefix Symbol Multiplication
factor
Tera T 1012
Giga G 109
Mega M 106
Kilo k 103
Hecto h 102
Base units: The SI contains seven BASE UNITS that each
represent a different kind of physical quantity. These are
commonly used as a convention.
Base Quantity: Base unit: Symbol:
Amount of Moles mol
substance
Temperature Kelvin K
Mass Kilogram kg
Distance Meters m
Current Ampere (amps) A
Luminosity intensity candela cd
Time Seconds s
Derived units: Derived Units are created by mathematical
relationships between other Base Units and are expressed in a
combination of fundamental and base quantities
Derived quantities Derived units symbol
Area Meters squared m2
Volume Cubic meters m3
Mass density Kilo per cubic meter kg/m3
Specific volume Cubic meter per kilo m3/kg
Celsius temp Degrees Celsius C
Prefix: Metric units use a prefix, used for conversion from
or to an SI unit. Below is a chart illustrating how prefixes
are labeled in metric measurements.
Prefix Symbol Multiplication
factor
Tera T 1012
Giga G 109
Mega M 106
Kilo k 103
Hecto h 102
