Is Japan metric or imperial?

Japan’s Metric System: A Brief History

In 1891, the Japanese government introduced the metric system to align with international standards and facilitate trade. However, its adoption was gradual, and the Imperial system (shakkanhō), which had been used for centuries, remained widely employed.

In 1924, the government enacted the Metric System Law, officially adopting the metric system as Japan’s legal measurement standard. This marked a significant shift in the country’s approach to measurement, bringing it in line with the majority of the world.

Despite the introduction of the metric system, the Imperial system continued to be used in certain areas. Traditional Japanese units, such as the shaku (foot) and the kan (pound), remained in common usage in construction, agriculture, and other industries.

Gradually, the metric system became more prevalent in Japan, and by the mid-20th century, it had largely replaced the Imperial system in most sectors. However, certain traditional units, such as the tatami (floor mat size) and the tsubo (land area measurement), still find use in specific contexts.

Current Status

Today, Japan uses the metric system as its primary measurement system. It is employed in all official documents, scientific research, and international trade. The Imperial system is rarely used, though certain traditional units continue to be employed in specific industries and cultural contexts.

Conclusion

Japan’s transition to the metric system has been a gradual process that has taken place over several decades. While the metric system is now the official standard, traditional units continue to be used in certain areas, reflecting the country’s rich cultural heritage. The dual use of measurement systems in Japan highlights the coexistence of tradition and modernity in Japanese society.