The kanji 量 primarily conveys the idea of "quantity," "amount," "volume," or "capacity." It deals with the measurement or assessment of something that can be counted, measured, or gauged. It's used to express how much of something there is.

・On-yomi (音読み): リョウ (ryou) ・Kun-yomi (訓読み): はか.る (haka.ru) – to measure, to weigh; かさ (kasa) – volume, bulk

⚫︎数量（すうりょう） Translation: Quantity, amount ⚫︎容量（ようりょう） Translation: Capacity, volume ⚫︎計量（けいりょう） Translation: Measurement, weighing

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The kanji 量 is a phono-semantic compound (形声文字). The left side is "里" (ri), which originally depicted a unit of distance. The right side is "重" (juu), meaning "heavy" or "weight". Together, these components convey the idea of measuring the weight of something. Over time, the meaning broadened to encompass quantity and amount in general. The original form of this character combined "里" and "重" reflecting the idea of measuring volume or weight across distance.