1R/1K in m², sq ft & 坪

A 1R/1K apartment in Japan is typically 13–25 m² (4–8 坪 / 평).

From a Japanese listing

Tatami size varies by region — the same “6畳” can differ by 15%+. Listings legally must also show ㎡.

19 ㎡
19.0
205
sq ft
5.75
坪 (tsubo)
11.7
≈ 畳 jō
🏠 A compact studio (1R/1K) — fine for one person.

1R/1K

🏠 A compact studio (1R/1K) — fine for one person.

㎡ is the legal size. 畳/坪 are traditional — always cross-check the ㎡ figure.

Open the full converter →