The Australian Capital Territory (ACT), which encompasses Canberra, covers 814.2 square kilometers, equivalent to approximately 201,173 acres.
This includes urban areas, nature reserves (like Namadgi National Park), forests, and rural land. The urban footprint of Canberra itself is much smaller—about 300 km² (74,000 acres)—with over 50% of the territory preserved as parks and reserves.