Conversion of units between 600 Board and Square Foot (600 bd and sq ft) is the conversion between different units of measurement, in this case it's 600 Board and Square Foot, for the same quantity, typically through multiplicative conversion factors (bd and sq ft). Conversion of units between 13939 Square Foot and Acre (U. S. Survey) (13939 sq ft and ac) is the conversion between different units of measurement, in this case it's 13939 Square Foot and Acre (U. S. Survey), for the same quantity, typically through multiplicative conversion factors (sq ft and ac). Conversion of units between 824952 Acre (International) and Square Metre (Si Unit) (824952 ac and m2) is the conversion between different units of measurement, in this case it's 824952 Acre (International) and Square Metre (Si Unit), for the same quantity, typically through multiplicative conversion factors (ac and m2). Conversion of units between 1000 Square Foot and Square Metre (Si Unit) (1000 sq ft and m2) is the conversion between different units of measurement, in this case it's 1000 Square Foot and Square Metre (Si Unit), for the same quantity, typically through multiplicative conversion factors (sq ft and m2).