# Please illustrate the differences between 数 and 量. Also 番号？

However, if you wanted to say that the number of something was increasing, (for example, the types of fruit in a supermarket) how could that be phrased? I'm guessing both terms could be used.

How does 番号 figure in here?

• Do you mean the number of types (one type, two types, ...) or the amount/number of a certain type of fruit? (two apples / two kilograms of apple)? Oct 24, 2019 at 6:23
• Oct 24, 2019 at 21:13

Both can be measured.

○ バナナの数が300万本にまで増えた。
× バナナの量が300万本にまで増えた。
× バナナの数が300万トンにまで増えた。
○ バナナの量が300万トンにまで増えた。

In terms of your specific question regarding types of fruit, if you really wanted to use either 「量」 or 「数」 to refer to the number of individual types of fruit there are, it would be more appropriate to use 「数」, as you are expressing the number of individual types. However, 「種類の数が増えた」 sounds slightly unnatural/redundant, and we would simply say 「種類が増えた」.

• +1. I work in the engineering field here in Japan and I just wanted to add that we use 数量 very often to refer to either or both 数 and 量 when talking about amounts, numbers, volumes, etc. It makes matters a lot easier. :)
– DXV
Oct 25, 2019 at 1:53
• バナナって、どっちかっちゅうと「バナナの数」「X個」より「バナナの本数」「X本」って言わへん？ Oct 25, 2019 at 10:32
• 爆笑！言いますね。途中でバナナに変えて個はすっかり見落としてもた。editします。 Oct 25, 2019 at 11:09