Where is 40.6388 74.6523?

Answer 1

You need to identify North or South and East or West.

40.6388N 74.6523W gives an address in Somerset Terrace, Bedminster, NJ

40.6388N 74.6523E is somewhere in the mountains of Kyrgistan, near the border with China

40.6388S 74.6523E lies in the South Pacific midway between Australia and Africa

40.6388S 74.6523W lies off the coast of Chile

74E 40N lies in the Barents sea to the north of Russia

74E 40S is on the Antarctica mainland

74W 40N is in the middle of Greenland

74W 40S is on the Ross Ice Shelf off Antarctica

Just a stab in the dark here, but I guess you're wanting New Jersey. Can you see the need for identifying which co-ordinates you are talking about?