Formula

ac = ha x 2.47

Quick Rough Maths

To get the Acres, multiply the number of Hectares by 2.5

Hectares (ha) in 1 Acre

There are 0.4 Hectares in 1 Acre

Acres (ac) in 1 Hectare

There are 2.47 Acres in 1 Hectare

Symbol: **ha**

Unit System: Non-SI Metric

Unit System: Non-SI Metric

The hectare is a unit of area and is a non-SI but metric unit with the symbol ha.

It represents the area equal to that of a square with edges 100m long (ie 1hm² or 10,000m²). This is the equivalent to about 2.47 acres.

Its size is down to its use primary use; that for measuring the size of land.

Symbol: **ac**

Unit System: Imperial / US Customary

Unit System: Imperial / US Customary

The acre is a unit of area and is used in the imperial and US customary systems with the symbol a.

It represents the area the size of one chain by one furlong (66 by 660 feet). This is exactly equal to 10 square chains, 1⁄640 of a square mile or 43,560 square feet.

It is generally used to measure the size of land.

1ha = 2.47ac

2ha = 4.94ac

3ha = 7.41ac

4ha = 9.88ac

5ha = 12.35ac

6ha = 14.82ac

7ha = 17.29ac

8ha = 19.76ac

9ha = 22.23ac

10ha = 24.7ac

11ha = 27.17ac

12ha = 29.64ac

13ha = 32.11ac

14ha = 34.58ac

15ha = 37.05ac

16ha = 39.52ac

17ha = 41.99ac

18ha = 44.46ac

19ha = 46.93ac

20ha = 49.4ac

21ha = 51.87ac

22ha = 54.34ac

23ha = 56.81ac

24ha = 59.28ac

26ha = 64.22ac

27ha = 66.69ac

28ha = 69.16ac

29ha = 71.63ac

30ha = 74.1ac

31ha = 76.57ac

32ha = 79.04ac

33ha = 81.51ac

34ha = 83.98ac

35ha = 86.45ac

36ha = 88.92ac

37ha = 91.39ac

38ha = 93.86ac

39ha = 96.33ac

40ha = 98.8ac

41ha = 101.27ac

42ha = 103.74ac

43ha = 106.21ac

44ha = 108.68ac

45ha = 111.15ac

46ha = 113.62ac

47ha = 116.09ac

48ha = 118.56ac

49ha = 121.03ac

51ha = 125.97ac

52ha = 128.44ac

53ha = 130.91ac

54ha = 133.38ac

55ha = 135.85ac

56ha = 138.32ac

57ha = 140.79ac

58ha = 143.26ac

59ha = 145.73ac

60ha = 148.2ac

61ha = 150.67ac

62ha = 153.14ac

63ha = 155.61ac

64ha = 158.08ac

65ha = 160.55ac

66ha = 163.02ac

67ha = 165.49ac

68ha = 167.96ac

69ha = 170.43ac

70ha = 172.9ac

71ha = 175.37ac

72ha = 177.84ac

73ha = 180.31ac

74ha = 182.78ac

76ha = 187.72ac

77ha = 190.19ac

78ha = 192.66ac

79ha = 195.13ac

80ha = 197.6ac

81ha = 200.07ac

82ha = 202.54ac

83ha = 205.01ac

84ha = 207.48ac

85ha = 209.95ac

86ha = 212.42ac

87ha = 214.89ac

88ha = 217.36ac

89ha = 219.83ac

90ha = 222.3ac

91ha = 224.77ac

92ha = 227.24ac

93ha = 229.71ac

94ha = 232.18ac

95ha = 234.65ac

96ha = 237.12ac

97ha = 239.59ac

98ha = 242.06ac

99ha = 244.53ac