I recently bought a piece of land in Borneo or Sabah Malaysia. I have a copy of a surveyor map which i'm having hard time understanding since i have no background in this field. I intend to plot the boundary of this land onto google earth but i face difficulties in converting the coordinate of the surveyor map to google earth coordinate (degree min sec). After doing some online readings i learned that the surveyer map is in UTM coordinate. So i use the online UTM converter to convert the coordinate to Degree Min Sec. However the conversion result is incorrect as it does not match the location on the google earth. Anyone can help me with the conversion please. THIS IS VERY COMPLICATED !!

the vertical grid is E800000m - E800500m - E801000m
the horizontal grid is N600000m - N600500m - N601000m

i'm using this converter :-