| Unit
|
Μονάδα
|
Symbol †
|
Quantity
|
System
|
Notes
|
| acre
|
έικρ •
|
ac
|
area
|
Imperial
|
= 4840 sq.yd
|
| ampere, amp
|
αμπέρ •
|
A
|
electrical current
|
SI base unit
|
|
| angstrom
|
άνγκστρομ •
|
Å
|
length
|
|
= 10-10 metre
|
| are
|
άριο •
|
a
|
area
|
accepted SI
|
= 1/100 hectare
|
| astronomical unit
|
αστρονομική μονάδα •
|
au, ua
|
length
|
astronomy
|
= 149.6 x 109 m
|
| bar
|
μπαρ •
|
bar
|
atmospheric pressure
|
non-SI
|
105 Pa
|
| becquerel
|
μπεκερέλ •
|
Bq
|
radioactive activity
|
SI derived unit
|
|
| cable length
|
ναυτικό στάδιο •
|
|
length (nautical)
|
international
|
= 185.2m = 1/10 nautical mile
|
| calorie, gramcalorie
|
θερμίδα •γραμμοθερμίδα •
|
|
energy
|
non-SI
|
= 4.184 Joule
|
| calorie, kilocalorie
|
θερμίδα •χιλιοθερμίδα •
|
|
energy
|
non-SI
|
= 4.184 kJoule
|
| candela
|
κηρίο •, καντέλα •
|
cd
|
luminous intensity
|
SI base unit
|
|
| carat
|
καράτι •
|
ct
|
mass
|
|
= 1/5 g
|
| centimetre
|
εκατοστόμετρο •
|
cm
|
length
|
CGS
|
= 1/100 m
|
| centimetre per second
|
εκατοστόμετρο ανά δευτερόλεπτο
|
cm/s
|
velocity
|
CGS
|
|
| coulomb
|
κουλόμπ •
|
C
|
electrical charge
|
SI derived
|
|
| degree
|
μοίρα •
|
°
|
plane angle
|
SI accepted
|
= 1/360 rotation
|
| degree Celsius
|
βαθμός Κελσίου •
|
°C
|
temperature
|
SI derived
|
see also: kelvin
|
| degree Fahrenheit
|
βαθμός Φαρενάιτ •
|
°F
|
temperature
|
|
|
| degree Reaumur
|
βαθμός Ρεωμύρου •
|
°R
|
temperature
|
|
|
| drachm, dram, dirham
|
δράμι •
|
ʒ, ℨ, dr
|
mass
|
Greek domestic (< 1959)
|
= 3.203g = 1/400 οκά
|
| dyne
|
dyne
|
dyn
|
force
|
CGS
|
|
| erg
|
erg
|
erg
|
energy
|
CGS
|
|
| farad
|
φαράντ •
|
F
|
electrical capacitance
|
SI derived
|
|
| fathom
|
οργυιά •
|
|
length (nautical)
|
Imperial
|
= 6ft = 1.8288m
|
| foot
|
πόδι •, πους •
|
ft
|
length
|
Imperial
|
= 0.3048m exactly
|
| gal
|
γκαλ •
|
Gal
|
acceleration
|
CGS
|
= 1 cm/s/s
|
| gallon
|
γαλόνι •
|
gal
|
volume
|
Imperial
|
= 4.55 litre
|
| gauss
|
γκάους •
|
G, Gs
|
magnetic flux density
|
CGS
|
= 1x10-4 tesla
|
| gram
|
γραμμάριο •
|
g
|
mass
|
CGS
|
|
| gray
|
γκρέυ •
|
Gy
|
radiation: absorbed dose
|
SI derived unit
|
|
| hectare
|
εκτάριο •
|
ha
|
area
|
SI accepted
|
= 10,000 m2
|
| henry
|
ανρί •
|
H
|
electrical inductance
|
SI derived
|
|
| hertz
|
χερτζ •
|
Hz
|
frequency
|
SI derived unit
|
= 1 cycle/s
|
| inch
|
ίντσα •
|
in
|
length
|
Imperial
|
= 25.4 mm exactly
|
| joule
|
τζάουλ •
|
J
|
energy
|
SI derived
|
= 1x107 erg
|
| kartezini
|
καρτεζίνι •
|
|
mass
|
Greek
|
= 115g = 36 δράμια
|
| katal
|
κατάλ •
|
kat
|
catalytic activity
|
SI derived unit
|
= 1 mol/s
|
| "katostari"
|
κατοστάρι •
|
|
mass
|
Greek
|
= 100 δράμια • = 1/4 οκά •
|
| kayser
|
|
K
|
wavenumber
|
CGS
|
|
| kelvin
|
κέλβιν •
|
K
|
thermodynamic temperature
|
SI base unit
|
|
| kilogram, kilo
|
χιλιόγραμμο •, κιλό •
|
kg, χγρ. •
|
mass
|
SI
|
|
| kilotonne
|
χιλιότονο •
|
kt, Tg
|
mass
|
|
= 1000 kg
|
| kilowatt
|
κιλοβάτ •
|
kW
|
electrical power
|
derived
|
|
| kilowatt-hour
|
κιλοβατώρα •
|
kWh
|
electrical energy
|
derived
|
|
| knot
|
κόμβος •
|
kn, kt
|
velocity
|
SI accepted
|
= 1.852 km/hr
|
| light year
|
έτος φωτός •
|
ly
|
length
|
astronomy
|
= 9.4607 x 1015 m
|
| litre
|
λίτρο •
|
l
|
volume
|
SI accepted
|
|
| lumen
|
λούμεν •
|
lm
|
luminous flux
|
SI derived unit
|
|
| lux
|
λουξ •, lux •
|
lx
|
illuminance
|
SI derived
|
|
| maxwell
|
μάξγουελ •
|
Mx
|
magnetic flux
|
CGS
|
= 10-8 weber
|
| metre
|
μέτρο •
|
m
|
length
|
SI base unit
|
|
| mho (reciprocal ohm)
|
mho •
|
Ω-1
|
electrical conductance
|
obsolete
|
= 1 siemens
|
| micrometre
|
μικρόμετρο •
|
μm
|
length
|
SI derived
|
= micron
|
| micron
|
μικρόν •
|
μm, μ
|
length
|
SI derived
|
= micrometre
|
| mile
|
μίλι •
|
mi
|
length
|
Imperial
|
= 1760yd = 1.609344km
|
| mina
|
μνα •
|
|
mass
|
historical
|
= 500g approx.
|
| minute
|
λεπτό •
|
m
|
time
|
SI accepted
|
|
|
|
μόδιο •
|
|
volume/mass
|
used for olives
|
|
| mole
|
μολ •
|
mol
|
amount of substance
|
SI base unit
|
|
| nautical mile
|
ναυτικό μίλι •
|
M, NM, nmi
|
length (nautical)
|
SI derived
|
= 1852m
|
| newton
|
νιούτον •
|
N
|
force
|
SI derived
|
|
| oersted
|
|
[Term?]
|
magnetising field
|
CGS
|
= 1 dyne per maxwell
|
| ohm
|
ωμ •
|
Ω
|
electrical resistance
|
SI derived
|
|
| oka
|
οκά •
|
|
mass
|
Greek domestic (< 1959)
|
= 1.281kg = 400 δράμια •
|
| ounce
|
ουγγιά •
|
oz
|
mass
|
Imperial
|
= 28.35g
|
| parsec
|
παρσέκ •
|
pc
|
length
|
astronomy
|
= 3.0857 x 1016 m
|
| pascal
|
πασκάλ •
|
Pa
|
pressure, stress
|
SI derived unit
|
= 1 Nm-2
|
| phot
|
|
ph
|
illuminance
|
CGS
|
= 10000 lux
|
| plethron
|
πλέθρο •
|
|
length
|
Greek historical
|
1/6 stadion = 30m approx
|
| poise
|
πουάζ •
|
P
|
viscosity
|
CGS
|
|
| pound
|
λίβρα •
|
lb
|
mass
|
Imperial
|
453.58g
|
| radian
|
ακτίνιο •
|
rad
|
angle
|
SI
|
= 360/2π = 57.3deg approx
|
| second
|
δευτερόλεπτο •
|
s
|
time
|
SI base unit, CGS
|
= 1/60 min
|
| siemens
|
ζήμενς •
|
S
|
electrical conductance
|
SI derived
|
|
| sievert
|
σίβερτ •
|
Sv
|
radiation dose
|
SI derived unit
|
|
| stadion
|
στάδιο •
|
|
length
|
Greek historical
|
= 150-200 m
|
| steradian
|
στερακτίνιο •
|
sr
|
solid angle
|
SI derived
|
= sphere/4π
|
| stilb
|
|
sb
|
luminance
|
CGS
|
= 1 candela/cm2
|
| stokes
|
|
St
|
kinematic viscosity
|
CGS
|
|
| stremma
|
στρέμμα •
|
|
area
|
Greek
|
= 1/10 hectare
|
| tesla
|
τέσλα •
|
T
|
magnetic flux density
|
SI derived
|
|
| talent
|
τάλαντο •
|
|
weight
|
historical
|
range = 25-60 kg
|
| tonne
|
τόνος •
|
t
|
weight
|
SI derived
|
= 1,000 kg
|
| volt
|
βολτ •
|
V
|
electrical potential
|
SI derived
|
|
| watt
|
βατ •
|
W
|
power
|
SI derived
|
|
| weber
|
βέμπερ •
|
Wb
|
magnetic flux
|
SI derived
|
|
| yard
|
γιάρδα •
|
yd
|
length
|
Imperial
|
= 0.9144 m
|
