Convert Jo to Square Meter

One jo equals 1.62 m². This converter allows you to easily convert between Jo and Square Meter in real time.

Formula

jo × 1.62 = m²

Example: 1 jo = 1.62 m²

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.

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.