| Main platforms |
| 1 | Chuo Line (towards Kanda)
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| 2 | Chuo Line (towards Kanda)
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| 3 | Keihin-Tohoku Line (towards Kanda)
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| 4 | Yamanote Line (towards Kanda, Akihabara, Ueno, Ikebukuro)
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| 5 | Yamanote Line (towards Yurakucho, Shimbashi, Shinagawa)
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| 6 | Keihin-Tohoku Line (towards Yurakucho)
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| 7 | Tokaido Line (towards Shimbashi)
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| 8 | Tokaido Line (towards Shimbashi)
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| 9 | Tokaido Line (towards Shimbashi)
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| 10 | Tokaido Line (towards Shimbashi)
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| Shinkansen platforms |
| 14 | Tokaido & San-yo & Kyushu Shinkansen (towards Shinagawa, Shin-Osaka)
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| 15 | Tokaido & San-yo & Kyushu Shinkansen (towards Shinagawa, Shin-Osaka)
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| 16 | Tokaido & San-yo & Kyushu Shinkansen (towards Shinagawa, Shin-Osaka)
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| 17 | Tokaido & San-yo & Kyushu Shinkansen (towards Shinagawa, Shin-Osaka)
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| 18 | Tokaido & San-yo & Kyushu Shinkansen (towards Shinagawa, Shin-Osaka)
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| 19 | Tokaido & San-yo & Kyushu Shinkansen (towards Shinagawa, Shin-Osaka)
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| 20 | Tohoku Shinkansen (towards Ueno)
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| 21 | Tohoku Shinkansen (towards Ueno)
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| 22 | Tohoku Shinkansen (towards Ueno)
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| 23 | Tohoku Shinkansen (towards Ueno)
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| Yokosuka/Sobu Line platforms |
| 1 | Yokosuka Line (towards Shimbashi)
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| 2 | Yokosuka Line (towards Shimbashi)
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| Keiyo Line platforms |
| 1 | Keiyo Line (towards Hatchobori)
Musashino Line (towards Hatchobori)
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| 2 | Keiyo Line (towards Hatchobori)
Musashino Line (towards Hatchobori)
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| 3 | Keiyo Line (towards Hatchobori)
Musashino Line (towards Hatchobori)
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| 4 | Keiyo Line (towards Hatchobori)
Musashino Line (towards Hatchobori)
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