키 (ki) · 몸무게 (mom-mu-ge, mommuge)
키 (ki) refers to a person's height, while 몸무게 (mommuge) refers to body weight, expressing distinct physical measurements.
One lane per word — no nested boxes, just the gist.
Height of a person or object
When to use
Talking about person's height, Measuring body height, Determining clothing size (height)
The nuance
Use 키 when referring to the vertical length or stature of a person or object, i.e., height. It is only appropriate for expressing 'how tall' someone or something is.
Weight of a person or animal, body weight
When to use
Measuring body weight, Health management, Setting diet goals
The nuance
Use 몸무게 when referring to the weight that a person or animal's body has. It is only appropriate for expressing 'how heavy' someone or something is.
제 키는 170cm입니다.
je ki-neun 170cmip-ni-da., je ki neun 170cmip ni da.
키 refers to height, so it fits well with a measurement like 170cm.
제 몸무게는 170cm입니다.
je mom-mu-ge-neun 170cmip-ni-da., je mom mu ge neun 170cmip ni da.
몸무게 refers to weight, so using cm (a length unit) is incorrect; kg should be used.
몸무게가 60kg이에요.
mom-mu-ge-ga 60kgi-e-yo., mom mu ge ga 60kgi e yo.
몸무게 expresses weight, so it is appropriate to use it with kg units.
키가 60kg이에요.
ki-ga 60kgi-e-yo., ki ga 60kgi e yo.
키 means height, so it should not be used with weight units like kg.
키가 크다.
ki-ga keu-da., ki ga keu da.
키 naturally pairs with '크다' to describe tall stature.
몸무게가 크다.
mom-mu-ge-ga keu-da., mom mu ge ga keu da.
'크다' usually describes size or height, not weight; use '많다' for weight.
몸무게가 많다.
mom-mu-ge-ga man-da., mom mu ge ga man da.
'많다' is used with 몸무게 to express having a large weight.
키가 많다.
ki-ga man-da., ki ga man da.
키 refers to height and does not pair with '많다'; use '크다' instead.
Which word is appropriate for talking about a person's height?
Which expression correctly indicates body weight?
Which body measurement is considered when deciding clothing size?
