Norway Yearbook - 2003

Measures and weight
Length
m metre
mm millimetre=0.001 m
cm centimetre=0.01 m
Area
m2 square metre
a are=100mL
daa decare=1 000 m2
Volume
m3 cubic metre
Mass (Weight)
kg kilogram
t ton=1 000 kg
Time
s second
min minute=60 s
Temperature
°C degree Celsius
Electric current
A ampere
Energy
km
mil
ha
km2
kilometre=1 000 m
10 kilometres= 10 000 m
hectare=10 000m2
square kilometre=1 000 000 m2
I, L litre=0.001 m3
hI, HL hectolitre=0.1 m3=100 I
barrel US measure of volume for petroleum=
(US) 0.159m3=1591
tkm
h
d
measure of transport performance=
t km
hour=60 min
day=24 h
J joule, 1 J=1 Ws kwh kilowatt hour=3 600 000 J
GJ gigajoule=1 000 000 000 J Mwh megawatt hour=3 600 000 000 J
TJ terajoule=1 000 000 000 000 J GWh gigawatt hour=3 600 000 000 000 J
Pi petajoule=1 000 000 000 000 000 J TWh terawatt hour=3 600 000 000 000 000 J
Ws watt second =1 J
toe ton oil equivalent 42 622 000 000 Jr
approx. 42,6 GJ
Power
W watt 1 W=1 J/s=VA MW megawatt=1 000 000 w
kW kilowatt=1 000 W MVA megavolt ampere=1 000 000 W
Units of measure of ships
RT Registered tonnage is common measure of capacity or volume for ships.
i register ton=2.83 m
GT Gross registered ton. The gross registered tonnage of a ship indicated the volume
of the whole ship including superstructure, deck and deck house.
NT Net register ton. The net registered tonnage primarily indicates the size of cargo space.
Some prefixes
Prefix Symbol Factor
exa E 1018 =1000000000000000000
peta P 1015 =1000000000000000
tera T 1012 =1000000000000
giga G iO9 =1000000000
mega M 106 =1000000
kilo k iO3 =1 000
hekto h 102 =100
deka da 10 =10
Source: Norwegian Standards Association and Norwegian Shipowners' Association
Statistical Yearbook of Norway 2003 533