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.
The hectare, a metric unit for measuring land area, is widely used around the globe, especially in agriculture, forestry, and land planning. Originating from France during the metric system’s inception in 1795, one hectare equates to 10,000 square meters (about 2.47 acres). Interestingly, the Great Barrier Reef Marine Park, one of the planet’s most extensive marine parks, spans about 344,400,000 hectares, illustrating the sheer magnitude that this unit can represent.
While it might seem specific to certain industries, the hectare is crucial in conservation efforts, playing a significant role in tracking deforestation and biodiversity loss worldwide. With global initiatives focusing on increasing protected areas, hectares have become a critical factor in ecological statistics and strategies, helping to foster a sustainable future.
Square Kilometers | Hectares |
---|---|
0
km²
|
0
ha
|
0.1
km²
|
10
ha
|
0.2
km²
|
20
ha
|
0.3
km²
|
30
ha
|
0.4
km²
|
40
ha
|
0.5
km²
|
50
ha
|
0.6
km²
|
60
ha
|
0.7
km²
|
70
ha
|
0.8
km²
|
80
ha
|
0.9
km²
|
90
ha
|
1
km²
|
100
ha
|
1.1
km²
|
110
ha
|
1.2
km²
|
120
ha
|
1.3
km²
|
130
ha
|
1.4
km²
|
140
ha
|
1.5
km²
|
150
ha
|
1.6
km²
|
160
ha
|
1.7
km²
|
170
ha
|
1.8
km²
|
180
ha
|
1.9
km²
|
190
ha
|
2
km²
|
200
ha
|
2.1
km²
|
210
ha
|
2.2
km²
|
220
ha
|
2.3
km²
|
230
ha
|
2.4
km²
|
240
ha
|
2.5
km²
|
250
ha
|
2.6
km²
|
260
ha
|
2.7
km²
|
270
ha
|
2.8
km²
|
280
ha
|
2.9
km²
|
290
ha
|
3
km²
|
300
ha
|
3.1
km²
|
310
ha
|
3.2
km²
|
320
ha
|
3.3
km²
|
330
ha
|
3.4
km²
|
340
ha
|
3.5
km²
|
350
ha
|
3.6
km²
|
360
ha
|
3.7
km²
|
370
ha
|
3.8
km²
|
380
ha
|
3.9
km²
|
390
ha
|
4
km²
|
400
ha
|
4.1
km²
|
410
ha
|
4.2
km²
|
420
ha
|
4.3
km²
|
430
ha
|
4.4
km²
|
440
ha
|
4.5
km²
|
450
ha
|
4.6
km²
|
460
ha
|
4.7
km²
|
470
ha
|
4.8
km²
|
480
ha
|
4.9
km²
|
490
ha
|
5
km²
|
500
ha
|
5.1
km²
|
510
ha
|
5.2
km²
|
520
ha
|
5.3
km²
|
530
ha
|
5.4
km²
|
540
ha
|
5.5
km²
|
550
ha
|
5.6
km²
|
560
ha
|
5.7
km²
|
570
ha
|
5.8
km²
|
580
ha
|
5.9
km²
|
590
ha
|
6
km²
|
600
ha
|
6.1
km²
|
610
ha
|
6.2
km²
|
620
ha
|
6.3
km²
|
630
ha
|
6.4
km²
|
640
ha
|
6.5
km²
|
650
ha
|
6.6
km²
|
660
ha
|
6.7
km²
|
670
ha
|
6.8
km²
|
680
ha
|
6.9
km²
|
690
ha
|
7
km²
|
700
ha
|
7.1
km²
|
710
ha
|
7.2
km²
|
720
ha
|
7.3
km²
|
730
ha
|
7.4
km²
|
740
ha
|
7.5
km²
|
750
ha
|
7.6
km²
|
760
ha
|
7.7
km²
|
770
ha
|
7.8
km²
|
780
ha
|
7.9
km²
|
790
ha
|
8
km²
|
800
ha
|
8.1
km²
|
810
ha
|
8.2
km²
|
820
ha
|
8.3
km²
|
830
ha
|
8.4
km²
|
840
ha
|
8.5
km²
|
850
ha
|
8.6
km²
|
860
ha
|
8.7
km²
|
870
ha
|
8.8
km²
|
880
ha
|
8.9
km²
|
890
ha
|
9
km²
|
900
ha
|
9.1
km²
|
910
ha
|
9.2
km²
|
920
ha
|
9.3
km²
|
930
ha
|
9.4
km²
|
940
ha
|
9.5
km²
|
950
ha
|
9.6
km²
|
960
ha
|
9.7
km²
|
970
ha
|
9.8
km²
|
980
ha
|
9.9
km²
|
990
ha
|
10
km²
|
1000
ha
|
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