v najhorsom pripade rucne

A1 = 16,45897
B1 = =CONCATENATE(INT(A1);"°";INT((A1-INT(A1))*60);"´";(((A1-INT(A1))*60)-INT((A1-INT(A1))*60))*60;"""")

a mas to

popripade si zaokruhli poslednu polozku na tolko desatinnych miest kolko chces...

16,45987 -> 16°27´35,5319999999952"