Square kilometer (km²)Acre (ac)00GeneralArea

Units of measurement

From value
To value

Calculations

Square kilometer (km²)
Acre (ac)
0
0123456789

Information

Square kilometer (km²)
A square kilometer (km²) is used for measuring large areas, such as cities, forests, and countries. One km² equals 1,000,000 m².
Acre (ac)
An acre (ac) is a traditional land measurement unit in the US and UK, equal to 4046.86 m² (approximately 0.4 ha).

Pairs in this group