How far form international terminal to domestic terminal?

Because, on next 2 week i had planed to qingdao, but no direct flight from BKK to qingdao (TG), thus i need to transit from BKK to Xiamen, then connect flight to qingdao (CZ). so, could you please let us know, how far or how long from international to domestic terminal. because i have limit connecting time only 2.3 hr.