Acres to square kilometers area measurement units conversion factor is below. To find out how many square kilometers in acres, multiply by the factor or use the converter below.
1 Acre = 0.00404685642 Square Kilometers
Acre is used in imperial, US customary systems for land measurement , agriculture and forestry. The abbreviation is "ac".
Square kilometer is a metric system unit, used mostly in measuring land. The abbreviation is km2 or "sq km". It equals to 100 hectares or 1 million sq meters.
For sq km to acre conversion, please go to sq km to acre
For other units of area conversion, please go to
Area Conversion