National Route 504
国道504号
Route information
Length	145.1 km[1] (90.2 mi)
Existed	1993–present
Major junctions
North end	National Route 269 in Kanoya, Kagoshima
South end	National Route 3 in Izumi, Kagoshima
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 503 → National Route 505

National Route 504 is a national highway of Japan connecting between Kanoya, Kagoshima and Izumi, Kagoshima in Japan, with total length has 145.1 km (90.2 mi).