• km²   a
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Rounding Mode:

The square kilometer is primarily used to quantify large areas of land. Fascinatingly, even though the metric system is standardized almost universally, the square kilometer remains one of the most significant units for various aspects of geography and urban planning. To put it in perspective, consider that the entire area of New York City’s Central Park measures approximately 3.41 square kilometers, which speaks volumes about its massive size within an urban environment.

Moreover, the square kilometer helps highlight the vastness of some of the world’s largest countries and cities. For instance, Russia, the largest country in the world, spans roughly 17 million square kilometers, showcasing the immense diversity and expanse of land that one country can encompass. This unit exemplifies the intriguing contrasts and scales of spaces we interact with globally.

Did you know?

The “are” is a unit of area primarily used in land measurement, notably in countries employing the metric system. Introduced in France in 1795, it represents 100 square meters, making it a practical unit for comparing parcels of land. Interestingly, it’s the base unit for hectares, with one hectare equating to 100 ares or 10,000 square meters. While the are has been largely overshadowed by hectares in commercial and agricultural contexts, it remains a vital unit in some regions for surveying smaller plots. The persistence of the “are” in certain legal and cultural settings highlights how historical units can remain relevant despite broader shifts towards newer measurement systems.

> Kilometers² to Ares Conversion Table

Square Kilometers Ares
0 km² 0 a
0.1 km² 1000 a
0.2 km² 2000 a
0.3 km² 3000 a
0.4 km² 4000 a
0.5 km² 5000 a
0.6 km² 6000 a
0.7 km² 7000 a
0.8 km² 8000 a
0.9 km² 9000 a
1 km² 10000 a
1.1 km² 11000 a
1.2 km² 12000 a
1.3 km² 13000 a
1.4 km² 14000 a
1.5 km² 15000 a
1.6 km² 16000 a
1.7 km² 17000 a
1.8 km² 18000 a
1.9 km² 19000 a
2 km² 20000 a
2.1 km² 21000 a
2.2 km² 22000 a
2.3 km² 23000 a
2.4 km² 24000 a
2.5 km² 25000 a
2.6 km² 26000 a
2.7 km² 27000 a
2.8 km² 28000 a
2.9 km² 29000 a
3 km² 30000 a
3.1 km² 31000 a
3.2 km² 32000 a
3.3 km² 33000 a
3.4 km² 34000 a
3.5 km² 35000 a
3.6 km² 36000 a
3.7 km² 37000 a
3.8 km² 38000 a
3.9 km² 39000 a
4 km² 40000 a
4.1 km² 41000 a
4.2 km² 42000 a
4.3 km² 43000 a
4.4 km² 44000 a
4.5 km² 45000 a
4.6 km² 46000 a
4.7 km² 47000 a
4.8 km² 48000 a
4.9 km² 49000 a
5 km² 50000 a
5.1 km² 51000 a
5.2 km² 52000 a
5.3 km² 53000 a
5.4 km² 54000 a
5.5 km² 55000 a
5.6 km² 56000 a
5.7 km² 57000 a
5.8 km² 58000 a
5.9 km² 59000 a
6 km² 60000 a
6.1 km² 61000 a
6.2 km² 62000 a
6.3 km² 63000 a
6.4 km² 64000 a
6.5 km² 65000 a
6.6 km² 66000 a
6.7 km² 67000 a
6.8 km² 68000 a
6.9 km² 69000 a
7 km² 70000 a
7.1 km² 71000 a
7.2 km² 72000 a
7.3 km² 73000 a
7.4 km² 74000 a
7.5 km² 75000 a
7.6 km² 76000 a
7.7 km² 77000 a
7.8 km² 78000 a
7.9 km² 79000 a
8 km² 80000 a
8.1 km² 81000 a
8.2 km² 82000 a
8.3 km² 83000 a
8.4 km² 84000 a
8.5 km² 85000 a
8.6 km² 86000 a
8.7 km² 87000 a
8.8 km² 88000 a
8.9 km² 89000 a
9 km² 90000 a
9.1 km² 91000 a
9.2 km² 92000 a
9.3 km² 93000 a
9.4 km² 94000 a
9.5 km² 95000 a
9.6 km² 96000 a
9.7 km² 97000 a
9.8 km² 98000 a
9.9 km² 99000 a
10 km² 100000 a