Useful Japanese Units for Daily Life in Japan

When learning Japanese, vocabulary and grammar are important…
but understanding Japanese units can make daily life in Japan MUCH easier 👀

Whether you’re shopping, reading menus, checking temperatures, or talking about money, these units appear everywhere.

Let’s learn some useful Japanese units you’ll often encounter in Japan 🌸

💴 円（えん）= Yen

The Japanese currency unit.

Examples:

100円えん = 100 yen
1,000円えん = 1,000 yen

One thing that surprises many learners is:

Japanese often counts large numbers using 「万（まん）」.

1万円まんえん = 10,000 yen
5万円まんえん = 50,000 yen

So instead of saying “ten thousand,” Japanese groups numbers differently from English.

You’ll hear this constantly in:

shopping
salaries
rent
restaurants

📏 ミリ / センチ / メートル / キロ

Japan mainly uses the metric system.

Common units include:

ミリ (mm) = millimeters
センチ (cm) = centimeters
メートル (m) = meters
キロ (km) = kilometers

Examples:

身長しんちょうは170センチです。= My height is 170 cm.
駅えきまで2キロです。= It’s 2 km to the station.

If you’re from a country using feet or miles, this can take some getting used to!

🚗 キロ毎時まいじ（km/h）

Used for speed.

Examples:

時速じそく60キロ = 60 km/h
制限速度せいげんそくどは80キロです。= The speed limit is 80 km/h.

Japan uses kilometers per hour, not miles per hour.

You’ll see this on:

road signs
car navigation systems

⚖️ グラム / キロ

Used for weight.

Examples:

お肉にく100グラム = 100 grams of meat
体重たいじゅうは60キロです。= My weight is 60 kg.

In Japanese supermarkets, food is often sold by grams.

You’ll especially see this for:

meat
vegetables
side dishes

instead of pounds or ounces.

🥤 ミリリットル / リットル

Used for liquid amounts.

Examples:

500ミリリットルのペットボトル = a 500 ml plastic bottle
毎日まいにち2リットルの水みずを飲のみます。= I drink 2 liters of water every day.

You’ll see these on:

drink bottles
milk cartons
cooking recipes

In casual conversation, Japanese people often shorten:

ミリリットル → ミリ

🌡️ 度（ど）

「度（ど）」 is used in several ways in Japanese.

Temperature

30度ど = 30 degrees Celsius
マイナス5度ど = minus 5 degrees Celsius

Japan uses Celsius, not Fahrenheit.

Eyesight

In Japan, eyesight is commonly measured using numbers like:

視力しりょく1.0 = Eyesight: 1.0
視力しりょく0.3 = Eyesight: 0.3

Angles

「度（ど）」 is also used for angles.

Examples:

90度ど = 90 degrees
180度ど = 180 degrees

So 「度（ど）」 does not only mean temperature 👀

Final Thoughts 🌸

Japanese units are deeply connected to everyday life in Japan.

Many are international:

meters
kilograms
liters
km/h

At first, these units may feel confusing…
but once you get used to them, everyday Japanese becomes MUCH easier 🇯🇵

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