AH1

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Asian Highway 1
Route information
Length	20,557 km (12,774 mi)
Major junctions
East end	Tokyo, Japan 35°41′03″N 139°46′29″E / 35.68417°N 139.77472°E / 35.68417; 139.77472
West end	Kapıkule, Turkey 41°43′01″N 26°21′10″E / 41.71694°N 26.35278°E / 41.71694; 26.35278
Location
Countries	Japan, South Korea, North Korea, China, Vietnam, Cambodia, Thailand, Myanmar, India, Bangladesh, Pakistan, Afghanistan, Iran, Turkey
Highway system
Asian Highway Network
→ AH2

Asian Highway 1 (AH1) is the longest east-west route of the Asian Highway Network, running 20,557 km (12,774 mi) from Tokyo, Japan via Korea, China, Southeast Asia, Bangladesh, India, Pakistan, and Iran to the border between Turkey and Bulgaria west of Istanbul where it joins end-on with European route E80, running all the way to Lisbon, Portugal.