Counting the World: Why Japanese Uses 500+ Different Numbers

In English, we say “one person,” “one book,” and “one beer.” In Japanese, these would be Hitori, Issatsu, and Ippon. This is because Japanese uses Counters (Josuushi)—specific suffixes attached to numbers based on the shape, size, or category of the object being counted.

The Logic of Shape

Many counters are based on the physical form of the object:

• ~Hon (本): For long, cylindrical objects. Pens, umbrellas, bottles, and even trees.
• ~Mai (枚): For thin, flat objects. Sheets of paper, plates, stamps, and shirts.
• ~Dai (台): For machines and vehicles. Cars, computers, and washing machines.
• ~Satsu (冊): For bound volumes. Books and magazines.

The Human Element

• ~Nin (人): For people (e.g., Sannin for three people).
• ~Ri (special): Only used for one person (Hitori) and two people (Futari).

The “Safety” Counter: ~Tsu

If you are at a restaurant and can’t remember the counter for “three dumplings,” don’t panic. Use the native Japanese counter ~Tsu.

• Hitotsu (1), Futatsu (2), Mittsu (3), Yottsu (4)… This acts as a “General Purpose” counter that is understood in almost any context.

Why Do They Do This?

Counters provide immediate context. If someone says “I saw two ~Hon,” you immediately know they saw something long and thin before they even name the object. It’s part of the linguistic precision that makes Japanese so fascinating.

Conclusion

Mastering every counter is a lifelong task, even for native speakers. For your trip, focus on ~Nin (people), ~Mai (tickets/paper), and the life-saving ~Tsu (general).