Whether you can bring a suitcase on a Japanese train—and whether you need to reserve a seat—depends on your route and the size of your luggage. On some Shinkansen lines, luggage measuring more than 160 cm across its three sides requires an advance seat reservation.
Measure your suitcase and check the railway rules before you leave. This guide explains JR East’s general guidance, the oversized-baggage rule on four Shinkansen routes, Tokyo Metro’s hand-baggage guidance, and ways to make traveling with luggage easier.
Before you travel: Luggage rules and storage locations vary by railway company, train, and car. This guide reflects operator information checked on October 4, 2026. Confirm the latest rules with the railway you will use before booking or boarding. This is general guidance, not a first-hand trip report.
- Quick guide: Measure your bag and check your route
- Four Shinkansen routes require reservations for bags over 160 cm
- JR East trains: Check storage locations as well as size limits
- Tips for traveling by train with a suitcase
- Before-boarding checklist
- Frequently asked questions
- In short: Check both your suitcase and your train
- Official information
Quick guide: Measure your bag and check your route
Use this table as a starting point. These rules apply to the operators and routes named below; they are not one nationwide rule for every Japanese train.
| What to check | What to do |
|---|---|
| Three sides total 160 cm or less | On the Tokaido, Sanyo, Kyushu, and Nishi-Kyushu Shinkansen, a special seat reservation is not required. Store your bag without obstructing others. |
| More than 160 cm and up to 250 cm | Reserve a seat with an oversized-baggage area in advance on those four routes. |
| More than 250 cm | Not permitted on those four Shinkansen routes. JR East also prohibits luggage exceeding its stated limits. |
| Not sure which company or train you will use | Check that operator’s baggage rules and onboard storage information. |
The 160 cm and 250 cm measurements refer to the sum of your suitcase’s height, width, and depth. In the diagram, “height” is the thickness or depth visible from the side. For example, a suitcase measuring 75 cm × 50 cm × 35 cm totals 160 cm. Measure the outside of your bag. Product listings may measure dimensions differently, so check the operator’s guidance about whether wheels and handles count.
Four Shinkansen routes require reservations for bags over 160 cm
On the Tokaido, Sanyo, Kyushu, and Nishi-Kyushu Shinkansen, baggage measuring more than 160 cm and up to 250 cm across its three sides is treated as oversized baggage. You must reserve a seat with an oversized-baggage area before boarding.
There is no extra charge specifically for reserving this seat, but the number of these seats is limited. Select a seat with an oversized-baggage area when booking, or ask at a station ticket office. You may be charged a fee if you bring oversized baggage without the required reservation. See JR West’s oversized baggage guide for size categories, reservation steps, and storage details.
This reservation rule does not apply in the same way to every train in Japan. JR East says reservations are generally not needed for ordinary luggage storage on its Shinkansen and limited express trains, while advising passengers on the four routes above to check the relevant operators’ rules. See JR East’s large-luggage guide. For Kyushu Shinkansen seating and luggage areas, also check JR Kyushu’s guidance.
Where to put your bag after reserving
With a seat that includes an oversized-baggage area, you generally place your suitcase in the designated space behind your reserved seat. Do not assume you can use the space behind the last row without a reservation. If your bag falls into the oversized category, reserve the designated seat first. The layout may vary by train and car.
If your bag totals 160 cm or less, you do not need this special reservation under the oversized-baggage rule. However, “no reservation required” does not mean you can put the suitcase anywhere. Make sure it can be stored safely on the luggage rack or at your feet without sticking into the aisle, and follow railway staff instructions.
JR East trains: Check storage locations as well as size limits
JR East’s general conditions allow up to two pieces of luggage per passenger, excluding personal belongings. Each piece must total no more than 250 cm across its three sides, be no longer than 2 m, and weigh no more than 30 kg. Even within those limits, some trains and cars may not have a dedicated area for large bags.
Before lifting a suitcase onto an overhead rack, consider whether you can lift it safely and whether it could fall or roll while the train is moving. JR East advises passengers not to place heavy or unstable items on the rack. If there is no designated area, keep your luggage near you without blocking an aisle or doorway. Check JR East’s large-luggage guide for train-specific storage information.
Tokyo Metro’s hand-baggage guidance includes limits such as 250 cm across three sides, 30 kg, and two pieces. It also asks passengers not to block aisles or doors. If your journey includes subway or private railway segments, check each operator’s rules: Tokyo Metro hand-baggage FAQ and Passenger guidelines (Japanese).
Tips for traveling by train with a suitcase
Check station maps for elevators
When planning a transfer, check the station map as well as the journey time. Depending on the platform and exit, reaching an elevator may require a detour. Allow extra time and find the elevator route before traveling with a large suitcase.
Avoid the busiest times when you can
On crowded commuter trains, it can be harder to find a safe place for your suitcase and to board or exit smoothly. If your schedule allows, consider traveling outside peak periods, reserving a seat, or choosing a route with fewer transfers.
Use a locker or luggage storage while sightseeing
If you want to explore Tokyo without carrying your suitcase, station or facility coin lockers and luggage-storage services may help. Check locations, sizes, and availability ahead of time. Our guide to using coin lockers in Tokyo covers size and price guidance and what to do when lockers are full. (Japanese article)
Consider luggage delivery between cities
If you would rather not carry a large suitcase from Tokyo to Kyoto or Osaka, look into luggage delivery through your accommodation or a delivery company. Confirm that your hotel can send or receive bags, when they will arrive, and how far in advance you need to arrange delivery. Keep anything you need during transit—such as a change of clothes, medication, chargers, and valuables—in your carry-on bag.
Before-boarding checklist
- Measure the height, width, and depth of your suitcase and add them together.
- Confirm the railway operator and route for each part of your journey.
- If your bag is over 160 cm on the Tokaido, Sanyo, Kyushu, or Nishi-Kyushu Shinkansen, reserve a seat with an oversized-baggage area.
- Check station maps for elevators and transfer routes.
- Decide where you will store your suitcase: overhead rack, at your feet, or in a designated area.
- Make sure your bag will not block an aisle or doorway.
- If you plan to store it while sightseeing, check locker size, location, and availability.
Frequently asked questions
Do I need a special seat if my suitcase measures exactly 160 cm?
On the Tokaido, Sanyo, Kyushu, and Nishi-Kyushu Shinkansen, the oversized-baggage rule applies to luggage that exceeds 160 cm across its three sides. A bag measuring exactly 160 cm does not require the special seat reservation under this rule. If you are unsure how your bag is measured, check its outside dimensions and ask the railway operator.
Do the same 160 cm reservation rules apply to the Tohoku, Joetsu, and Hokuriku Shinkansen?
Do not automatically apply the oversized-baggage seat reservation rule for the four routes above to other Shinkansen lines. JR East publishes its own general baggage conditions and train-specific storage information. Check the operator and car information for your journey.
What if all oversized-baggage seats are booked?
Consider taking another train, arranging luggage delivery, or adjusting your itinerary. Storage areas and reservation procedures vary by train, so contact the railway before boarding rather than assuming you can travel without the required reservation.
Where can I put my suitcase on a train?
If you have a reserved baggage area, use the designated space. Otherwise, use an overhead rack or the space at your feet only if the bag can be kept secure and does not obstruct an aisle. Ask station or train staff if the suitcase is too heavy to lift safely or you are unsure where it may go.
In short: Check both your suitcase and your train
Before bringing a suitcase on a Japanese train, check its dimensions and the rules for the operator and route you will use. On the Tokaido, Sanyo, Kyushu, and Nishi-Kyushu Shinkansen, luggage over 160 cm across its three sides requires an advance reservation for a designated seat. Other routes may have different conditions and storage arrangements, so confirm with the relevant railway.
If a large suitcase would make transfers or sightseeing difficult, consider a station locker, luggage-storage service, or delivery to your accommodation. Measuring your bag and planning where to store it before departure can make your journey easier.
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