Convert Square Meter to Jo

One m² equals 0.6172839506 jo. This converter allows you to easily convert between Square Meter and Jo in real time.

Formula

m² × 0.6172839506 = jo

Example: 1 m² = 0.6172839506 jo

What is Square Meter?

The square meter is the SI derived unit of area, representing a square with sides of one meter. It is the universal standard for measuring floor area in buildings, apartments, and commercial spaces. Real estate listings worldwide specify property sizes in square meters. In construction and architecture, building codes define requirements in terms of square meters. One square meter is approximately the area covered by a standard interior door.

What is Jo?

The jo is a Japanese unit of area based on the size of one tatami mat, standardized at 1.62 square meters for real estate purposes by the Japan Fair Trade Council. However, actual tatami dimensions vary by region: the Kyoto-style kyoma is about 1.82 m², the Tokyo-style edoma is about 1.55 m², and the Nagoya-style chukyo-ma is about 1.66 m². In Japanese housing, room sizes are almost always described in jo (for example, "a 6-jo room" or "an 8-jo living room"). This unit provides an intuitive sense of room size that is deeply rooted in Japanese residential culture.