›› SI base quantity: mass

This category of measurement units is defined by the "weight" type, which is an SI derived quantity. The SI base unit is defined by the "mass" type. Weight and mass are technically different quantities. Mass is an intrinsic property of matter. Weight is a force that results from the action of gravity on matter. For common usage, weight is directly proportional to mass so this distinction is not critical to unit conversions.

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›› SI unit: kilogram

The SI base unit for mass is the kilogram. The SI derived unit for weight or force is the newton.

›› Convert between two weight units

Convert to

›› Definition: Kilogram

The deprecated unit kilogram-force (kgf) or kilopond (kp) is the force exerted by one kilogram of mass in standard Earth gravity (defined as exactly 9.806 65 m/s²). One kilogram-force is equal to exactly 9.806 65 newtons.

›› Weight units

arratel [Arab]
arroba [Portugal]
arroba [Spain]
as [Northern Europe]
atomic mass unit [1960]
atomic mass unit [1973]
atomic mass unit [1986]
atomic mass unit [1998]
avogram
bag [portland cement]
baht [Thailand]
bale [UK]
bale [US]
bismar pound [Denmark]
calorie
calorie [burned]
candy [India]
carat [international]
carat [metric]
carat [pre-1913 US]
carat [UK]
carga [Mexico]
catti [China]
catti [Japan]
catty [China]
catty [Japan, Thailand]
cental
centigram
centner [Germany]
centner [Russia]
chaldron
chin [China]
chin [Japan]
clove
crith
dalton
dan [China]
dan [Japan]
decigram
decitonne
dekagram
dekatonne
denaro [Italy]
denier [France]
drachme
dram
dram [apothecaries]
dyne
electron
electronvolt
etto [Italy]
exagram
femtogram
firkin [butter, soap]
flask
fother [lead]
fotmal [lead]
funt [Russia]
gamma
gigaelectronvolt
gigagram
gigatonne
gin [China]
gin [Japan]
grain
gram
gran [Germany]
grano [Italy]
gros
hectogram
hundredweight [long, UK]
hundredweight [short, US]
hyl
jin [China]
jupiter
kati [China]
kati [Japan]
keel [coal]
keg [nails]
kilo
kilodalton
kilogram
kilogram-force
kiloton [long, UK]
kiloton [short, US]
kilotonne
kin [Japan]
kip
koyan [Malaysia]
kwan [Japan]
last [Germany]
last [US, wool]
last [US]
liang [China]
libra [ancient Rome]
libra [Italy]
libra [metric]
libra [Portugal, Spain]
livre [France]
long ton
lot [Germany]
mace [China]
mahnd [Arab]
marc [France]
marco [Spanish]
mark [English]
mark [German]
maund [India]
maund [Pakistan]
megadalton
megagram
megatonne
mercantile pound
metric ton
metric tonne
mic
microgram
millidalton
millier
milligram
millimass unit
mina [Hebrew]
momme [Japan]
myriagram
nanogram
newton
obol [Greece]
obolos [Ancient Greece]
obolus [Ancient Rome]
oka [Turkey]
onça [Portuguese]
once [France]
oncia [Italy]
ons [Dutch]
onza [Spanish]
ounce
ounce [troy]
ounce-force
packen [Russia]
pennyweight [troy]
petagram
pfund [Denmark, Germany]
picogram
point
pond [Dutch]
pound
pound [metric]
pound [troy]
pound-force
pud [Russia]
pund [Scandinavia]
qian [China]
qintar [Arab]
quarter (ton) [US]
quarter [UK]
quarter [US]
quartern
quartern-loaf
quintal [French]
quintal [metric]
quintal [Portugal]
quintal [Spanish]
rebah
rotl [Arab]
sack [UK, wool]
scruple [troy]
seer [India]
seer [Pakistan]
shekel [Hebrew]
short ton
slinch
slug
stone
tael [Japan]
tahil [China]
talent [Hebrew]
tan [China]
technische mass einheit (TME)
teragram
tetradrachm [Hebrew]
tical [Asia]
tod
tola [India]
tola [Pakistan]
ton [long, UK]
ton [metric]
ton [short, US]
tonelada [Portugal]
tonelada [Spain]
tonneau [France]
tovar [Bulgaria]
troy ounce
troy pound
truss
uncia [Rome]
unze [Germany]
vagon [Yugoslavia]
yoctogram
yottagram
zentner [Germany]
zeptogram
zettagram