Laundry in Japan: Coin Laundries, Hotel Machines and Voltage for Small Appliances

Somewhere around the second week of a trip, a bag of damp T-shirts and a pair of sneakers that never quite dried bring on the question. In Japan the answer is a coin laundry, a hotel service or a machine in the building where you are staying. Each works differently, and each comes with its own small habits.

Mount Fuji and the Japanese countryside · Illustration

How do you do laundry in Japan?

You do it in one of three ways: in a coin laundry, where you run the machines yourself, through your hotel, or in a machine inside the place where you sleep if it has one. Which one fits depends on how long you are staying, how much you are carrying and how much you want to hand over to someone else.

Japanese households have a long habit of washing at home and hanging clothes to dry on a balcony or a rack, and you will notice futons, towels and shirts airing over railings as you walk residential streets. A traveler’s laundry fits into that rhythm in a smaller way. A few quick-drying pieces rinsed in a sink and hung in the bathroom are one option, a full load in a laundry shop is another.

Washing by hand and drying in your room

Travelers carry a small bar of soap or a few detergent sheets for this, and a length of cord or a folding hanger turns a shower curtain rod into a drying line.

Rooms in Japanese hotels and guesthouses are often small, so a damp load shares space with your suitcase. Spreading items near the bathroom fan or air conditioner helps, and thin synthetic fabrics dry faster than denim or cotton knits. Heavy items such as jeans and sweaters are better saved for a machine.

Using a machine: what changes from home

A Japanese washing machine looks familiar, but the details differ. Controls are often labeled in Japanese, with symbols or buttons for washing, rinsing, spinning and sometimes drying. Check the machine’s instructions before starting a load, including whether detergent is supplied or must be added.

Washer and dryer are often separate machines, and in some shops they are side by side in a row. You move your wet clothes from one to the other, which means keeping a close eye on what you have left in each. Photos of coin laundries, like one taken in Kanagawa, show this layout: tidy rows of washers, taller dryers, a folding table and a few chairs.

Power and appliances

If you pack a travel iron, steamer or small clothes dryer, the electricity matters. Japan runs on a lower voltage than the U.S., and the frequency depends on which part of the country you are in.

Area	Voltage (V)	Frequency (Hz)
Eastern Japan	100	50
Western Japan	100	60

Check the label on any appliance you bring before plugging it in. Heat-based devices are the ones most affected by the supply, so a steam iron deserves a second look before it leaves the suitcase.

Where are coin laundries?

Coin laundries, called koin randorii in Japanese, are small self-service shops that you find around Japan, including in the Kanagawa area, where one has been photographed in a typical setting. They are the choice for anyone who wants a full load washed and dried without involving a hotel.

The coin laundry is a format with a long history elsewhere. Where are coin laundries? Japan has its own version of the idea, and the shops are worth recognizing before you need one.

What a coin laundry looks like

Look for a storefront marked コインランドリー (coin laundry), then check the posted instructions and available equipment. Some shops are staffed, others are unattended, so the shop itself tells you how it runs.

The atmosphere is quiet and practical. People sit with a phone or a book while the drum turns, and the hum of dryers fills the room. It is a small slice of local routine, and it fits well into a rest day between sightseeing days.

Finding one near where you are staying

A map app is the most direct way to find a coin laundry. Search for the Japanese term, koin randorii, or the English word laundromat, and look at the results around your hotel or neighborhood. Walking a few blocks of a residential street sometimes turns one up as well.

Once you are inside, take a moment to read the instructions on the machines. Where the instructions are only in Japanese, the symbols and the buttons for washing, drying and start usually give enough of a clue, and a phone translation app handles the rest. Check the shop’s accepted payment methods before loading the machine, and bring a bag for clean clothes.

Machines in apartments and shared buildings

Not every washing machine is open to the public. Self-service machines in hotels, hospitals, student residences and apartment blocks are reserved for the residents of those buildings. If you are staying in a rental apartment or a guesthouse with a machine, it is part of your stay, and a coin laundry elsewhere is a different thing.

This distinction matters when you see a machine in a lobby or corridor. A washer in a shared building belongs to the people living there, and a visitor who is not staying in it should not assume it is open to use. A coin laundry shop, with its open door and its row of machines, is built for the public.

What about hotel laundry?

Hotel laundry is an option for guests, either as a service the staff handle or as machines inside the hotel that only guests may use. It spares you the trip to a shop, though what a hotel offers varies from one property to the next.

Machines for guests

Some hotels and guesthouses put a washer and dryer on a floor or in a corner of the building. These machines are reserved for residents, so they are for guests of that property and not for the street outside. If your accommodation has them, the front desk can tell you how they are set up and how they are paid for.

A guest laundry room has a different feel from a coin laundry shop. It is small, it is shared with other guests, and the neighbors may be other travelers waiting for their own cycle. It is a convenient pause in a long trip, and the same advice applies as at a coin laundry: read the labels and keep an eye on the timing.

Laundry done for you

Some hotels offer a laundry service, where you leave clothes and collect them washed. Ask your hotel whether it offers a laundry service and how to use it. If you want shirts pressed for a dinner or a formal event, this is the route to ask about.

What a hotel offers and how it handles the request is for the property to say, so ask when you check in rather than assuming. A question at the front desk about machines and laundry service is a normal one, and it settles whether you pack for the whole trip or plan a laundry stop.

Choosing between the options

A hand-wash in the basin fits a night or two. A coin laundry fits a full load of mixed clothes and a rest afternoon. A hotel service fits delicate items or a day when you would rather be out. Guest machines, where they exist, sit in between, close to your room and without the walk.

Packing with laundry in mind changes what goes in the suitcase. Quick-drying layers, a small pouch for dirty clothes and a few detergent packets cover most situations, and a lighter bag is easier to carry through stations and up hotel stairs.

Good to know before you go

Carry some coins for a coin laundry and keep a bag for clean clothes.

If you travel in the rainy season or in typhoon season, damp air slows drying on a line, which is another reason to use a dryer rather than count on the room. The appliance voltage is lower than at home, so check small electrical items before you plug them in.

Sources

Wikipedia, Coin laundry (https://en.wikipedia.org/wiki/Coin_laundry), checked October 11, 2026
Wikivoyage, Japan (https://en.wikivoyage.org/wiki/Japan), checked October 11, 2026