| No. | Kana | Kanji |
|---|---|---|
| 1 | ひとつ | 一つ |
| 2 | ふたつ | 二つ |
| 3 | みっつ | 三つ |
| 4 | よっつ | 四つ |
| 5 | いつつ | 五つ |
| 6 | むっつ | 六つ |
| 7 | ななつ | 七つ |
| 8 | やっつ | 八つ |
| 9 | ここのつ | 九つ |
| 10 | とお | 十 |
| How many | いくつ | 幾つ |
This is one of the things you just need to memorize. This counter is used just to count objects from 1 to 10.
When counting beyond 10 things, つ counter is no longer used - instead 個 counter is used (十一個, 十二…)
Check out other counters.