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 acre, a unit of area commonly used in the United States and the United Kingdom, traces its origins back to the Middle Ages. Historically, it was defined as the amount of land that could be plowed by a yoke of oxen in one day. Today, one acre is standardized to be exactly 43,560 square feet. To put that into perspective, an acre is roughly the size of an American football field, minus the end zones.
Interestingly, the term “acre” is derived from the Old English word “æcer,” meaning open field. Though primarily used in agriculture and land measurement, the acre is still employed in real estate to describe large residential or commercial properties, reflecting its enduring utility in real-world applications.
| Hectares | Acres |
|---|---|
0
ha
|
0
ac
|
0.1
ha
|
0.247105
ac
|
0.2
ha
|
0.49421
ac
|
0.3
ha
|
0.741315
ac
|
0.4
ha
|
0.988421
ac
|
0.5
ha
|
1.23553
ac
|
0.6
ha
|
1.48263
ac
|
0.7
ha
|
1.72974
ac
|
0.8
ha
|
1.97684
ac
|
0.9
ha
|
2.22395
ac
|
1
ha
|
2.47105
ac
|
1.1
ha
|
2.71816
ac
|
1.2
ha
|
2.96526
ac
|
1.3
ha
|
3.21237
ac
|
1.4
ha
|
3.45947
ac
|
1.5
ha
|
3.70658
ac
|
1.6
ha
|
3.95368
ac
|
1.7
ha
|
4.20079
ac
|
1.8
ha
|
4.44789
ac
|
1.9
ha
|
4.695
ac
|
2
ha
|
4.9421
ac
|
2.1
ha
|
5.18921
ac
|
2.2
ha
|
5.43631
ac
|
2.3
ha
|
5.68342
ac
|
2.4
ha
|
5.93052
ac
|
2.5
ha
|
6.17763
ac
|
2.6
ha
|
6.42473
ac
|
2.7
ha
|
6.67184
ac
|
2.8
ha
|
6.91894
ac
|
2.9
ha
|
7.16605
ac
|
3
ha
|
7.41315
ac
|
3.1
ha
|
7.66026
ac
|
3.2
ha
|
7.90736
ac
|
3.3
ha
|
8.15447
ac
|
3.4
ha
|
8.40157
ac
|
3.5
ha
|
8.64868
ac
|
3.6
ha
|
8.89579
ac
|
3.7
ha
|
9.14289
ac
|
3.8
ha
|
9.39
ac
|
3.9
ha
|
9.6371
ac
|
4
ha
|
9.88421
ac
|
4.1
ha
|
10.13131
ac
|
4.2
ha
|
10.37842
ac
|
4.3
ha
|
10.62552
ac
|
4.4
ha
|
10.87263
ac
|
4.5
ha
|
11.11973
ac
|
4.6
ha
|
11.36684
ac
|
4.7
ha
|
11.61394
ac
|
4.8
ha
|
11.86105
ac
|
4.9
ha
|
12.10815
ac
|
5
ha
|
12.35526
ac
|
5.1
ha
|
12.60236
ac
|
5.2
ha
|
12.84947
ac
|
5.3
ha
|
13.09657
ac
|
5.4
ha
|
13.34368
ac
|
5.5
ha
|
13.59078
ac
|
5.6
ha
|
13.83789
ac
|
5.7
ha
|
14.08499
ac
|
5.8
ha
|
14.3321
ac
|
5.9
ha
|
14.5792
ac
|
6
ha
|
14.82631
ac
|
6.1
ha
|
15.07341
ac
|
6.2
ha
|
15.32052
ac
|
6.3
ha
|
15.56762
ac
|
6.4
ha
|
15.81473
ac
|
6.5
ha
|
16.06183
ac
|
6.6
ha
|
16.30894
ac
|
6.7
ha
|
16.55604
ac
|
6.8
ha
|
16.80315
ac
|
6.9
ha
|
17.05025
ac
|
7
ha
|
17.29736
ac
|
7.1
ha
|
17.54447
ac
|
7.2
ha
|
17.79157
ac
|
7.3
ha
|
18.03868
ac
|
7.4
ha
|
18.28578
ac
|
7.5
ha
|
18.53289
ac
|
7.6
ha
|
18.78
ac
|
7.7
ha
|
19.0271
ac
|
7.8
ha
|
19.2742
ac
|
7.9
ha
|
19.52131
ac
|
8
ha
|
19.76841
ac
|
8.1
ha
|
20.01552
ac
|
8.2
ha
|
20.26262
ac
|
8.3
ha
|
20.50973
ac
|
8.4
ha
|
20.75683
ac
|
8.5
ha
|
21.00394
ac
|
8.6
ha
|
21.25104
ac
|
8.7
ha
|
21.49815
ac
|
8.8
ha
|
21.74525
ac
|
8.9
ha
|
21.99236
ac
|
9
ha
|
22.23946
ac
|
9.1
ha
|
22.48657
ac
|
9.2
ha
|
22.73367
ac
|
9.3
ha
|
22.98078
ac
|
9.4
ha
|
23.22788
ac
|
9.5
ha
|
23.47499
ac
|
9.6
ha
|
23.72209
ac
|
9.7
ha
|
23.9692
ac
|
9.8
ha
|
24.2163
ac
|
9.9
ha
|
24.46341
ac
|
10
ha
|
24.71051
ac
|
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