The Keiyo Line sits apart from the rest of Tokyo Station. It's deep underground, near Yurakucho. So lockers here are easy to miss if you don't know where to look.
There are three locker areas to know. One is on B1F, between the two Keiyo underground gates. Another sits along BayRoad Passage. A quieter one waits on the B3F concourse, just above the platforms. All three carry S/M/L sizes, including suitcase-friendly Large lockers.
Where Are the Keiyo Line Coin Lockers at Tokyo Station?
The Keiyo Line is the line most visitors take toward Maihama Station for Tokyo Disney Resort. It also serves Kaihin-Makuhari Station for Makuhari Messe, plus Soga Station for ZOZO Marine Stadium.
Its platforms sit on the south side of Tokyo Station, near Yurakucho. They're tucked deep underground, well away from the Shinkansen and other JR lines.
Because so many riders haul suitcases toward Disney or a convention, demand for coin lockers runs high here. So there are three spots worth knowing, covered one by one below.
JR Tokyo Station, B1F — floor map of the Keiyo Line coin locker location.
B1F, Between the Keiyo Underground Marunouchi Gate and Keiyo Underground Yaesu Gate
This is the largest of the three locker areas. JR marks it on-site as Coin Lockers ① and ②, set on facing walls across the corridor.
JR Tokyo Station, B1F — coin lockers along both sides of the corridor between the two Keiyo Line gates.
One catch: both banks sit flush against the wall. So they're easy to miss if you're coming from the Yaesu side, unless you catch the signage near Seijo Ishii Gran Gate pointing the way.
JR Tokyo Station, B1F — near Seijo Ishii Gran Gate, with Coin Lockers ① and ② marked on opposite sides of the corridor.
Locker ② sits roughly halfway between the Keiyo Underground Marunouchi Gate and the Keiyo Underground Yaesu Gate, close to the escalators down to the platforms. Both banks stock all three sizes — S, M, and L.
JR Tokyo Station, B1F — Coin Lockers ②, between the Keiyo Underground Marunouchi Gate and Keiyo Underground Yaesu Gate.
BayRoad Passage (B1F Connecting Passage)
Of the three, this is the easiest to find. BayRoad Passage connects the Shinkansen and other JR lines to the Keiyo Line, with three moving walkways to help with the long walk.
JR Tokyo Station, B1F — BayRoad Passage lockers, with a good stock of Large lockers for suitcases.
The lockers sit on the left, right where the third moving walkway ends. Clear signage points the way, so you won't need to backtrack.
Plus, the moving walkways make it much easier to cover the distance with a suitcase in tow. This locker area also carries a solid stock of Large lockers built for suitcases.
JR Tokyo Station, B1F — BayRoad Passage, with the coin lockers just past the third moving walkway.
B3F Concourse — the Hidden Locker Spot
Tokyo Station's Keiyo Line layout runs deeper than most first-time visitors expect. The gates and the BayRoad connecting passage sit on B1F, while the platforms themselves are on B4F.
In between, on B3F, is a concourse with restrooms and a bank of lockers. Many travelers walk straight past it on their way down to the platform.
JR Tokyo Station, B3F — a quieter bank of coin lockers most travelers walk past on their way to the platforms.
That makes it the quietest of the three. It's worth checking first if the other two are full.
JR Tokyo Station, B3F — the concourse between the B1F gates and B4F platforms, where this locker bank hides in plain sight.
Keiyo Line Locker Availability: Weekday Crowd Levels and the Best Bets
Weekday Crowd Levels
We checked all three locations on a weekday around 11 a.m. BayRoad Passage was the busiest of the three. That makes sense, since it's the most convenient for anyone connecting from the Shinkansen or other JR lines.
The B1F lockers were a close second in convenience. However, they saw noticeably lighter use, which makes them a solid backup.
The B3F concourse lockers were the emptiest by far. In fact, they're the hidden gem of the group — the first place we'd check if the other two were full.
Weekends, Holidays, and Event Days
Keep in mind this snapshot reflects a weekday late morning. Usage climbs fast on weekends, holidays, and around big events at Tokyo Disney Resort, Makuhari Messe, or ZOZO Marine Stadium.
The Keiyo Line's distance from the rest of the station does help; its lockers tend to stay less crowded overall. Still, a large locker count is no guarantee of an open slot.
Backup Options If Everything's Full
If all three areas are full, head to the lockers on Tokyo Station's 1st floor or near the Sobu Line instead. Also, build in some extra time, since the transfer to the Keiyo Line can take 15 to 20 minutes on its own.
Reference: JR East — Tokyo Station Information
For a visual sense of the walk itself, this video follows the route from the Yamanote Line platforms to the Keiyo Line platforms. That way, you can see the distance and time involved firsthand. (The narration is in Japanese, but the walking route comes through clearly on screen.)
FAQ
Are there coin lockers right at the Keiyo Line platforms at Tokyo Station?
Not directly on the platforms. However, there's a locker area one floor up on the B3F concourse, plus two more on B1F near the gates, so you don't have to backtrack far.
Which Keiyo Line locker area is easiest to find?
The one along BayRoad Passage. It sits right where the third moving walkway ends, with clear signage, making it the simplest option for anyone connecting from the Shinkansen or other JR lines.
Is there a hidden or less crowded coin locker near the Keiyo Line?
Yes — the B3F concourse lockers, one floor above the platforms. They're the quietest of the three, because most travelers walk straight through on their way down without noticing them.
Do the Keiyo Line lockers have space for a suitcase?
Yes. All three locations stock S/M/L sizes. The BayRoad Passage area, in particular, carries a good number of Large lockers built for suitcases.
How long does it take to transfer to the Keiyo Line at Tokyo Station?
Budget at least 15 to 20 minutes from the Yamanote Line or Shinkansen platforms. Since the Keiyo Line sits apart from the rest of the station, it's worth building in extra time if you're catching a train to Maihama, Kaihin-Makuhari, or Soga.
Is there anywhere to throw away trash near the Keiyo Line lockers?
Yes — both Keiyo Underground gates have a trash can nearby, so it's easy to tidy up before you head to the platform. For every trash can location at Tokyo Station, see our full guide to Tokyo Station trash cans.
Key Takeaways
- Start at BayRoad Passage from the Shinkansen — it's the easiest to spot, right past the third moving walkway.
- BayRoad full? Try the B1F lockers (Coin Lockers ① and ②) between the two Keiyo gates, or the quieter B3F concourse.
- All three spots stock Large lockers for suitcases — no need to hunt around before a Disney Resort trip.
- Visiting on a weekend or event day? Arrive early, since usage climbs fast.
- Give yourself 15–20 minutes to reach the platforms, with Tokyo Station's 1F or Sobu Line lockers as backup.
We walked from the Shinkansen platforms all the way to the Keiyo Line lockers in person to confirm these locations and check availability firsthand.
About the author: I'm Mori, the writer behind rekichiri — I also cover Japan's train stations in Japanese on the main site. For this guide, I walked every route to the Keiyo Line lockers firsthand, rather than relying on secondhand reports.