Wikipedia: Abkürzungen/Einheiten

a	Jahr?
a	Ar
A	Ampere
Å	Ångström
a.	acre
asb	Apostilb
at	technische Atmosphäre
atm	physikalische Atmosphäre
b	Barn
bar
bl.	barrel
Bq	Becquerel
bsh., bu.	bushel
Btu.	British thermal unit
C	Coulomb
°C	Grad Celsius
cable length
cal	Kalorie
cd	Candela
ch.	chain
Ci	Curie
cm	Centimeter
cwt.l.	long hundredweight
cwt.sh.	short hundredweight
d	Tag
dr.av.	dram
dr.t., dr.ap.	drachm
dwt.	pennyweight
dyn
erg	Erg
eV	Elektronenvolt
f	Fermi
F	Farad
°F	Grad Fahrenheit
fl.dr.	fluid drachm
fl.dr.	fluid dram
fl.oz.	fluid ounce
fm.	fathom
ft. (')	foot
ft.lb.	foot-pound
fur.	furlong
G	Gauss
g	Gramm
gal.	gallon
gi.	gill
gr.	grain
Gy	Gray
h	Stunde
H	Henry
ha	Hektar
hl	Hektoliter
hp	horsepower
hph	horsepower hour
Hz	Hertz
in. ('')	inch
J	Joule
K	Kelvin
kg	Kilogramm
kWh	Kilowattstunde
l	Liter
lb.	pound
lb.p.sq.ft.	pound per square foot
lb.p.sq.in.	pound per square inch
lb.t., lb.at.	pound
li.	link
Lj	Lichtjahr
lm	Lumen
lmh	Lumenstunde
lx	Lux
m	Meter
M	Maxwell
min	Minute
min	minimum
mkp	Meterkilopond
mmWS	millimeter Wassersäule
mol	Mol
N	Newton
n.m.	nautical mile
Oe	Oerstedt
oz.	ounce
oz.ap.	ounce
p	Pond
Pa	Pascal
Pc	Parsec
ph	Phot
pk.	peck
ppb	parts per billion
ppm	parts per million
PS	Pferdestärke
pt.	pint
qr.	quarter
qr.l.	long quarter
qr.sh.	short quarter
qt.	quart
rd.	rod
rem
ro.	rood
s	Sekunde
S	Siemens
s.ap.	scruple
sb	Stilb
st.	stone
stat.mi.	statute mile
Sv	Sievert
T	Tesla
t	Tonne
t.l.	long ton
t.sh.	short ton
tn.p.sq.in.	long ton per square inch
tn.sh.p.sq.in.	short ton per square inch
Torr
u	units - atomare Masseneinheit
V	Volt
W	Watt
Wb	Weber
yd.	yard
μ	Mikron
Ω	Ohm