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METRIC AND IMPERIAL UNITS ABBREVIATIONS
TYPICAL
APPLICATIONS
AREA
Land area
ELECTRICITY
FORCE
FORCE PER LENGTH
FREQUENCY
FREQUENCY - - ROTATIONAL
LENGTH
MASS
RECOMMENDED SI (METRIC) UNITS
NAME
hectare
square meter
square millimetre
ampere
volt
microfarad
ohm
kilonewton
newton
newton per metre
megahertz
kilohertz
hertz
revolution per minute
kilometre
meter
centimetre
millimetre
micrometer
kilogram
gram
milligram
SYMBOL
ha
acre
2
m
square foot
square inch
2
mm
square inch
A
ampere
V
volt
microfarad
μF
ohm
Ω
kN
pound
N
pound
N/m
pound per inch
MHz
Megahertz
kHz
kilohertz
Hz
hertz
r/min
revolution per minute
rpm
km
mile
m
foot
cm
inch
mm
inch
μm
kg
pound
g
ounce
mg
IMPERIAL UNIT
NAME
SYMBOL
ha
2
ft
2
in
2
in
A
V
μF
Ω
Ib
Ib
Ib/in
MHz
kHz
Hz
r/min
rpm
mi
ft
in
in
Ib
oz
(a)
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