1.
body fat scale; body fat meter; body composition monitor
A household device that measures body fat percentage, usually a bathroom scale that also estimates body composition by passing a weak electrical current through the body. Many modern models also report muscle mass, visceral fat, basal metabolic rate, and similar metrics.
体脂肪計に乗る。
I step onto the body fat scale.
体脂肪計で体脂肪率を測る。
I measure my body fat percentage with the body fat scale.
最近の体脂肪計は筋肉量も測定できる。
Recent body fat scales can also measure muscle mass.
ダイエットを始めたので、体脂肪計を買って毎朝記録することにした。
Since I started a diet, I bought a body fat scale and decided to record my numbers every morning.
Composed of 体脂肪 (body fat) and the suffix 計 (measuring device). The word refers specifically to the consumer device, not to professional body-composition equipment used in hospitals or gyms (which is more likely called 体組成計).
USAGE:
In Japan, most home bathroom scales sold today are 体脂肪計 rather than plain weight scales — the word is essentially interchangeable with "bathroom scale" in modern usage.
COMMON COLLOCATIONS:
- 体脂肪計に乗る: to step on the body fat scale
- 体脂肪計で測る: to measure with the body fat scale
- 体脂肪計付き体重計: weight scale with a body fat meter
SIMILAR WORDS:
- 体重計: bathroom scale — measures weight only; the traditional plain scale
- 体組成計: body composition monitor — a broader device that measures many metrics (muscle, bone, water); more technical term
- ヘルスメーター: health meter — a general katakana term for bathroom scales, often overlapping with 体重計