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.
The square mile, a unit of area unique to imperial and U.S. customary systems, is often associated with vast expanses of land, particularly in regions like the United States and Canada. Historically used to map territories and cities, the square mile encompasses an area equivalent to 640 acres. One particularly fascinating application of the square mile is in city planning: Manhattan, one of the world’s most densely populated areas, covers about 22.7 square miles yet houses over a million residents!
Another interesting aspect is the “square mile of influence”: cities like London have financial districts, each around one square mile, that wield immense global economic power. These districts, often referred to simply as “The City,” play crucial roles in shaping world markets, showing how a single square mile can be the epicenter of international financial activity.
Hectares | Square Miles |
---|---|
0
ha
|
0
mi²
|
0.1
ha
|
0.000386102
mi²
|
0.2
ha
|
0.000772204
mi²
|
0.3
ha
|
0.00115831
mi²
|
0.4
ha
|
0.00154441
mi²
|
0.5
ha
|
0.00193051
mi²
|
0.6
ha
|
0.00231661
mi²
|
0.7
ha
|
0.00270271
mi²
|
0.8
ha
|
0.00308881
mi²
|
0.9
ha
|
0.00347492
mi²
|
1
ha
|
0.00386102
mi²
|
1.1
ha
|
0.00424712
mi²
|
1.2
ha
|
0.00463322
mi²
|
1.3
ha
|
0.00501932
mi²
|
1.4
ha
|
0.00540542
mi²
|
1.5
ha
|
0.00579153
mi²
|
1.6
ha
|
0.00617763
mi²
|
1.7
ha
|
0.00656373
mi²
|
1.8
ha
|
0.00694983
mi²
|
1.9
ha
|
0.00733593
mi²
|
2
ha
|
0.00772204
mi²
|
2.1
ha
|
0.00810814
mi²
|
2.2
ha
|
0.00849424
mi²
|
2.3
ha
|
0.00888034
mi²
|
2.4
ha
|
0.00926644
mi²
|
2.5
ha
|
0.00965254
mi²
|
2.6
ha
|
0.0100386
mi²
|
2.7
ha
|
0.0104247
mi²
|
2.8
ha
|
0.0108108
mi²
|
2.9
ha
|
0.011197
mi²
|
3
ha
|
0.0115831
mi²
|
3.1
ha
|
0.0119692
mi²
|
3.2
ha
|
0.0123553
mi²
|
3.3
ha
|
0.0127414
mi²
|
3.4
ha
|
0.0131275
mi²
|
3.5
ha
|
0.0135136
mi²
|
3.6
ha
|
0.0138997
mi²
|
3.7
ha
|
0.0142858
mi²
|
3.8
ha
|
0.0146719
mi²
|
3.9
ha
|
0.015058
mi²
|
4
ha
|
0.0154441
mi²
|
4.1
ha
|
0.0158302
mi²
|
4.2
ha
|
0.0162163
mi²
|
4.3
ha
|
0.0166024
mi²
|
4.4
ha
|
0.0169885
mi²
|
4.5
ha
|
0.0173746
mi²
|
4.6
ha
|
0.0177607
mi²
|
4.7
ha
|
0.0181468
mi²
|
4.8
ha
|
0.0185329
mi²
|
4.9
ha
|
0.018919
mi²
|
5
ha
|
0.0193051
mi²
|
5.1
ha
|
0.0196912
mi²
|
5.2
ha
|
0.0200773
mi²
|
5.3
ha
|
0.0204634
mi²
|
5.4
ha
|
0.0208495
mi²
|
5.5
ha
|
0.0212356
mi²
|
5.6
ha
|
0.0216217
mi²
|
5.7
ha
|
0.0220078
mi²
|
5.8
ha
|
0.0223939
mi²
|
5.9
ha
|
0.02278
mi²
|
6
ha
|
0.0231661
mi²
|
6.1
ha
|
0.0235522
mi²
|
6.2
ha
|
0.0239383
mi²
|
6.3
ha
|
0.0243244
mi²
|
6.4
ha
|
0.0247105
mi²
|
6.5
ha
|
0.0250966
mi²
|
6.6
ha
|
0.0254827
mi²
|
6.7
ha
|
0.0258688
mi²
|
6.8
ha
|
0.0262549
mi²
|
6.9
ha
|
0.026641
mi²
|
7
ha
|
0.0270271
mi²
|
7.1
ha
|
0.0274132
mi²
|
7.2
ha
|
0.0277993
mi²
|
7.3
ha
|
0.0281854
mi²
|
7.4
ha
|
0.0285715
mi²
|
7.5
ha
|
0.0289576
mi²
|
7.6
ha
|
0.0293437
mi²
|
7.7
ha
|
0.0297298
mi²
|
7.8
ha
|
0.0301159
mi²
|
7.9
ha
|
0.030502
mi²
|
8
ha
|
0.0308881
mi²
|
8.1
ha
|
0.0312742
mi²
|
8.2
ha
|
0.0316603
mi²
|
8.3
ha
|
0.0320464
mi²
|
8.4
ha
|
0.0324325
mi²
|
8.5
ha
|
0.0328187
mi²
|
8.6
ha
|
0.0332048
mi²
|
8.7
ha
|
0.0335909
mi²
|
8.8
ha
|
0.033977
mi²
|
8.9
ha
|
0.0343631
mi²
|
9
ha
|
0.0347492
mi²
|
9.1
ha
|
0.0351353
mi²
|
9.2
ha
|
0.0355214
mi²
|
9.3
ha
|
0.0359075
mi²
|
9.4
ha
|
0.0362936
mi²
|
9.5
ha
|
0.0366797
mi²
|
9.6
ha
|
0.0370658
mi²
|
9.7
ha
|
0.0374519
mi²
|
9.8
ha
|
0.037838
mi²
|
9.9
ha
|
0.0382241
mi²
|
10
ha
|
0.0386102
mi²
|
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