convert square kilometres to acres (ac)
one square kilometre (km²) = 247.105381467165 acres (ac)

convert square kilometres to arpents (a²) Que 
one square kilometre (km²) = 292.492262460867 arpents (a²) Que

convert square kilometres to hectares (ha)
one square kilometre (km²) = 100 hectares (ha)

convert square kilometres to perches (p²) Que
one square kilometre (km²) = 29249.2262460867 perches (p²) Que

convert square kilometres to square centimetres (cm²
one square kilometre (km²) = 10000000000 square centimetres (cm²)

convert square kilometres to square feet (ft²)
one square kilometre (km²) = 10763910.4167097 square feet (ft²)

convert square kilometres to square french feet (fr.ft²) Que
one square kilometre (km²) = 9476749.30373207 square french feet (fr.ft²) Que

convert square kilometres to square inches (in²)
one square kilometre (km²) = 1550003100.0062 square inches (in²) 

convert square kilometres to square metres (m²)
one square kilometre (km²) = 1000000 square metres (m²) 

convert square kilometres to square miles (mi²) 
one square kilometre (km²) = 0.386102158542446 square miles (mi²)

convert square kilometres to square millimetres (mm²) 
one square kilometre (km²) = 1000000000000 square millimetres (mm²)

convert square kilometres to square yards (yd²)
one square kilometre (km²) = 1195990.04630109 square yards (yd²) 

convert square metres (m²) to  U.S. Survey acres (ac) U.S. Survey
one square metre (m²) = 247.104393046628 U.S. Survey acres (ac) U.S. Survey

convert square metres (m²) to  U.S. Survey square feet (ft²) U.S. Survey
one square metre (m²) = 10763867.3611111 U.S. Survey square feet (ft²) U.S. Survey