As it was 12,000 ri from Daifang Commandery to the queen's state and it was already 10,500 ri to the state of Ito, which is presumed to have been in Fukuoka Prefecture, the location of Yamatai is supposed not to have been outside Kyushu with just 1,500 ri to go.
帯方郡から女王國までの12,000里のうち、福岡県内に比定される伊都国までで既に10,500里使っていることから、残り1,500里では邪馬台国の位置は九州を出ないとされること。