Japan National Route 18
| National Route 18 | ||||
|---|---|---|---|---|
| 国道18号 | ||||
| Route information | ||||
| Length | 193.9 km (120.5 mi) | |||
| Existed | 4 December 1952–present | |||
| Major junctions | ||||
| North end | National Route 8 / National Route 350 in Jōetsu | |||
| South end | National Route 17 in Takasaki | |||
| Location | ||||
| Country | Japan | |||
| Highway system | ||||
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National Route 18 (国道18号, Kokudō jūhachi-gō) is a national highway connecting Takasaki and Joetsu, Niigata in Japan. A section of the highway is designated as a part of the Japan Romantic Road.