Japan National Route 405

National Route 405 is a national highway of Japan connecting Nakanojō, Gunma and Jōetsu, Niigata in Japan, with a total length of 109.6 km (68.1 mi).

National Route 405
国道405号
Route information
Length	109.6 km[1] (68.1 mi)
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 404 → National Route 406