Convertidor Tsubo / Tatami (坪畳平米変換)

Convierte entre Tsubo (坪), Tatami (畳) y metros cuadrados para bienes raíces japoneses.

Overview

Japanese real estate is measured in tsubo (坪) and jō (畳), the latter counting tatami mats. One tsubo is 400/121 square metres, about 3.3058 m², and equals exactly two standard tatami. Floor area in listings is quoted in both units, with room sizes given in mats and total area in tsubo or square metres.

Resultados de Conversión

Tsubo (坪)
Metros Cuadrados (m²)
Tatami (畳)
Pies Cuadrados (sqft)
Pyeong (평)

Tamaños Regionales de Tatami (地域別畳サイズ)

Región Tamaño (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 Tsubo (坪) = 2 Tatami (畳) en cada región. 1 Tsubo = 1 Pyeong (평) ≈ 3,3058 m².

How to Use

  1. 1
    Enter the value

    Type the amount you want to convert into the Tsubo / Tatami Converter (坪畳変換).

  2. 2
    Choose the units

    Select the unit to convert from and the unit to convert to.

  3. 3
    Read the converted value

    The conversion updates instantly in your browser — no button, nothing sent to a server.

About

Tatami dimensions are regional, so a mat count does not fix an area. Kyōma mats used in the Kyoto region measure 1.824 m², chūkyōma in Nagoya 1.656 m², edoma in Tokyo 1.549 m², and danchima in postwar public housing just 1.445 m². A six-mat room therefore ranges from about 8.7 to 10.9 m² depending on the standard applied.

The variation is historical: Kyoto sized rooms to the mat, laying the floor first and building around it, while Edo sized the pillars first and cut mats to fit the remaining space, producing progressively smaller standards as urban land grew expensive.

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.

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