Child Fares in Japan: Trains, Attractions and Under-Six Rules

Work out who pays what on trains, buses and at attractions, including the free rides for young children, half fares for ages 6 to 11, and reserved seat rules.

Published October 19, 2026 at 12:14 PM JST | By Tokyo Paul

Quick answer: In Japan, children aged 12 and over generally pay the adult fare, ages 6 to 11 pay a reduced child fare (often half), and children under 6 usually ride public transport free. On JR trains, up to two young children can ride free with one paying adult, and a child in a reserved seat pays the child fare. Rules vary by operator and attraction.

The basic age brackets

The Japan National Tourism Organization (JNTO) summarizes Japan's usual rail fare system in three bands. Children aged 12 and up pay the adult fare. Children aged 6 to 11 receive a discount, commonly 50 percent of the adult fare. Children aged 5 and under usually ride free on public transport, although some private companies set different age limits.

In Japanese terms, these groups are often called yoji (infants and preschoolers), jido (children) and otona (adults). The categories can be tied to school stages, such as elementary school age, so a rule can differ slightly from an age count. Check the operator's wording if your child is close to a boundary.

Because the same child may count as an infant on one operator and as a child on another, it helps to write down your child's exact age and birthday before the trip. A short, polite question to station staff, with the child's age ready, is generally enough. Fares for adults accompanying children are unaffected by these rules.

Free rides for young children

On JR trains, children aged 1 to 5 can travel free under specific conditions: JNTO says up to two young children can ride with one paying adult. Additional young children pay the child fare. Children under 1 ride free unless they occupy a reserved seat.

On bullet and express trains, the same idea applies: JNTO notes that young children travel free unless they occupy a reserved seat. The wording of these age bands differs slightly between sources, which is a good reason to check the operator's current rules. If a family has more than two young children per adult, ask the ticket counter how to count each child before traveling.

An unreserved car does not guarantee a seat for anyone, so on a long ride a free-fare toddler may end up on a lap. Families often choose to reserve a seat for a toddler on a long bullet train ride for comfort, even though it adds a child fare. Reserved seats in peak seasons sell out, so reserve early.

Reserved seats and bullet trains

Reserved seats are where the free-ride rule usually changes. When a young child occupies a reserved seat, the child fare applies, and for children aged 6 to 11 the reduced rate applies as usual. JNTO suggests reserving seats in peak travel season, since unreserved cars fill quickly.

Large strollers and suitcases need some planning on long rides. If a baby sits on a parent's lap in an unreserved car, no ticket is typically needed, but a lap is not always comfortable on a long ride. A reserved seat for a toddler may be worth the fare for longer trips.

JNTO's shinkansen guide explains that on the Tokaido, Sanyo, Kyushu and Nishi-Kyushu lines, bags over 160 cm in total dimensions need a reserved seat with an oversized baggage area, booked in advance online, at ticket machines or at counters. There is no extra charge beyond the regular reserved-seat fare. For a family with a large suitcase and a small child, a seat of this kind can solve two problems at once.

Rail passes and special tickets

JNTO says most rail passes give a 50 percent discount for children aged 6 to 11, with younger children often traveling free under the same conditions as the regular fare rules. Regional passes and city day passes follow their own rules, so read the conditions of each ticket.

Prepaid transit cards may have a child version for ages 6 to 11, but card rules differ by operator, so ask station staff about the options for children. The extra charge for premium seating such as the Green Car is often not discounted for children, so check before booking an upgrade.

Attractions, museums and activities

JNTO notes that discounted admission fees for children are common in Japan, alongside discounted transport fares. Public museums often have lower prices or free admission for younger visitors. For example, the Tokyo National Museum lists free admission to its collection exhibitions for visitors under 18 (and over 70), with proof of age requested at the entrance. Special exhibitions there are ticketed separately.

Prices and age groups change often, and private attractions set their own scales, so check each website. Carry some form of proof of age, such as a passport copy, since staff may ask for it at borderline ages.

Buses, subways and local transit

City buses, subways and trams are run by many different operators, and each sets its own child rules. JNTO notes that children aged 5 and under usually ride public transport free and that some private companies set different age limits. In practice, this means a single trip across a city can involve several slightly different systems.

Look at the fare chart posted at the station or on the operator's website, and ask staff when unsure. Day passes for subways and buses may have a child version, though the details differ between passes. Buying one pass for the whole family only makes sense if the number of rides justifies it, so count the trips planned for the day.

Practical tips for budgeting

Use child-priced tickets at the counter or machine by selecting the child option, and tell staff the child's age. Keep a note of each child's date of birth and school stage in case the rule depends on one or the other.

For buses, taxis and local transit, rules vary: many city systems let preschool children ride free, while some charge from a younger age. Fares and age limits change over time, so check current information on the operator's website before you travel. Compare the total cost of passes against buying individual tickets, because child discounts sometimes make single tickets cheaper for short trips.

A small spreadsheet or note listing each family member's age and the relevant fare category can help when buying multiple tickets. For attractions, look for family tickets or combined passes, and check the website for current child categories. Because policies change, treat the ranges here as typical rather than guaranteed.

Frequently Asked Questions

Do children ride free on trains in Japan?

Young children often do. JNTO says children aged 5 and under usually ride free on public transport, and on JR trains up to two children aged 1 to 5 can ride free with one paying adult. A child in a reserved seat pays the child fare, and some private operators use different age limits.

How old is a child for fare purposes in Japan?

Commonly, ages 6 to 11 count as children and receive a discount, often half the adult fare. At age 12 the adult fare applies. Categories can follow school stages, so a child near a birthday boundary should be checked against the operator's current rules before buying a ticket.

Do rail passes give child discounts?

Most rail passes offer a 50 percent discount for ages 6 to 11, according to JNTO, and younger children often travel free under the regular rules. Conditions differ between passes, so read the details of the specific pass. Premium seating may be charged at full price.

Want to go deeper? Tokyo Paul's book Japan With a Toddler is available on Amazon.

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More guides from Tokyo Paul: Pacing an Itinerary in Japan for Older Travelers, Car Seats in Japan: Child Seat Law, Taxis and Rental Cars and Family Travel in Japan: Fun Stops and Easy Tips for Kids.