Japanese Counter Words Guide

Japanese counter words (助数詞, josūshi) are special suffixes attached to numbers when counting objects, people, animals, or events. Unlike English, where you simply say "three books," Japanese requires a specific counter for each category — 三冊 (sansatsu) for books, 三匹 (sanbiki) for small animals, and 三人 (sannin) for people.

This system can feel overwhelming at first, but most daily conversations rely on around 30 common counters. Mastering these will cover the vast majority of counting situations you encounter on the JFT Basic exam and in everyday life in Japan.

When living and working in Japan, certain counters appear constantly. つ (tsu) is the universal counter for general objects and works when you cannot remember the specific one. 人 (nin/ri) counts people, 個 (ko) counts small round or compact items, and 枚 (mai) counts flat things like paper, plates, and shirts.

At restaurants and shops, you will frequently use 杯 (hai) for cups and glasses, 本 (hon) for long cylindrical objects like bottles and pens, and 台 (dai) for machines and vehicles. Knowing these counters helps you communicate naturally in workplaces, stores, and daily interactions.

The JFT Basic (国際交流基金日本語基礎テスト) tests your ability to handle practical Japanese situations. Counter words appear in listening comprehension when someone orders items at a shop, describes quantities at work, or talks about schedules using time-related counters like 回 (kai, times) and 時間 (jikan, hours).

In the reading section, counters often appear in signs, forms, and short messages. Being comfortable with at least 20–25 common counters gives you a significant advantage in understanding these real-life scenarios quickly during the exam.

Our guide organizes over 30 Japanese counters into intuitive categories — people, animals, objects, time, and more. Each counter includes its reading in hiragana, example sentences, and the important sound changes (音便, onbin) that occur with certain numbers.

You can browse by category or search for a specific counter. The guide highlights irregular readings that frequently trip up learners, such as 一人 (hitori) and 二人 (futari) instead of the expected いちにん and ににん. Use this as a quick reference while studying or before your exam.