坪・畳変換機 (坪畳平米変換)
日本の不動産向けに坪、畳、平方メートルを相互変換します。
変換結果
| 坪 (坪) | |
| 平方メートル (m²) | |
| 畳 (畳) | |
| 平方フィート (sqft) | |
| 坪 (평) |
地域別畳サイズ (地域別畳サイズ)
| 地域 | サイズ（m²） |
|---|---|
| 京間 Kyoma (Kyoto/Kansai) | 1.8241 m² |
| 中京間 Chūkyōma (Nagoya) | 1.6562 m² |
| 江戸間 Edoma (Tokyo/Kanto) | 1.5488 m² |
| 団地間 Danchima (Housing) | 1.4450 m² |
1坪 = 各地域で畳2枚。1坪 = 1평 ≈ 3.3058 m²。
Frequently Asked Questions
What is a tsubo and how big is it?
A tsubo (坤) is a Japanese unit of area equal to approximately 3.306 m² (about 35.58 ft²). It is nearly identical to the Korean pyeong. One tsubo equals 2 tatami mats in the Nagoya/standard (Chūkyō-ma) size.
What is the difference between tatami sizes across Japan?
Tatami mat sizes vary by region: Kyō-ma (Kyoto, 191×95.5 cm), Chūkyō-ma (Nagoya, 182×91 cm), Edoma/Kantō-ma (Tokyo, 176×88 cm), and Danchi-ma (public housing, 170×85 cm). When comparing apartments, knowing the tatami standard used is important.
Why are Japanese apartments measured in tatami mats?
Tatami (畳) has been the traditional flooring in Japanese homes for centuries, so room sizes are naturally expressed in mat count. A typical room might be 6-jō (6 mats, about 9.9 m²) or 8-jō (8 mats, about 13.2 m²). This convention persists even in modern apartments with non-tatami flooring.