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Nil

*

Provisional or preliminary figure

 

Measures and weight

Length

m

metre
mmmillimetre = 0.001 m
cmcentimetre = 0.01 m
kmkilometre = 1 000 m
mil10 kilometres = 10 000 m

Area

m2square metre
aare = 100 m2
daadecare = 1 000 m2
hahectare = 1 0 000 m2
km2square kilometre = 1 000 000 m2

Volume

m3cubic metre
l, Llitre = 0.001 m3
hl, HLhectolitre = 0.1 m3 = 100 l
barrelUS measure of volume for petroleum = (US) 0.159 m3 = 159 l

Mass (Weight)

kgkilogram
tton = 1 000 kg
tkmmeasure of transport performance = t · km

Time

ssecond
minminute = 60 s
hhour = 60 min
dday = 24 h

Temperature

ºCdegree Celsius

Electric current

Aampere

Energy

Jjoule, 1 J = 1 Ws
GJgigajoule = 1 000 000 000 J
TJterajoule = 1 000 000 000 000 J
PJpetajoule = 1 000 000 000 000 000 J
Wswatt second = 1 J
toeton oil equivalent 42 622 000 000 J = ca. 42.6 GJ
kWhkilowatt hour = 3 600 000 J
MWhmegawatt hour = 3 600 000 000 J
GWhgigawatt hour = 3 600 000 000 000 J
TWhterawatt hour = 3 600 000 000 000 000 J

Power

Wwatt 1 W =1 J/s = VA
kWkilowatt = 1 000 W
MWmegawatt = 1 000 000 W
MVAmegavolt ampere = 1 000 000 W

Units of measure of ships

GTGross ton.
The gross tonnage of a ship indicates the volume of the whole ship including superstructure, deck and deck house.
NTNet ton.
The net tonnage indicates the size of cargo space.

Some prefixes

PrefixSymbolFactor 
exaE1018=1 000 000 000 000 000 000
petaP1015=1 000 000 000 000 000
teraT1012=1 000 000 000 000
gigaG109=1 000 000 000
megaM106=1 000 000
kilok103=1 000
hektoh102=100
dekada10

=10

Source: Norwegian Standards Association