Convert from obolos [Ancient Greece] to seer [Pakistan]

Unit Definition (obolos [Ancient Greece])
The obolos [Ancient Greece] is a historic unit of weight or mass. The obol is a very small weight that originated as the weight of a tiny Greek coin. In ancient Greece the obolos was equal to 1/6 drachma, or roughly half a gram (8 grains).

Unit Definition (seer [Pakistan])
The seer [Pakistan] is a traditional weight unit in India and South Asia. In Pakistan, the seer is now considered equal to the kilogram. The unit is sometimes spelled ser.