How to convert hectares to square kilometers

Ar and hectare are metric units of area measurement. Usually in hectares and arakh measure the area of agricultural land. Ar is also called "weaving", due to the fact that ar is one-hundredth part of a hectare.

Instruction

1. Ar
   
   Ar (lat. area - area of surface) of land equal to one hundred square meters. This area is a square with side 10 meters. That is,
   
   1 ar = 100 m2.
   
   Thus, to convert Ares to square meters, just comnote number by one hundred. Do not forget to specify derived units.
   
   For example,
   
   30 ar = 3 000 m2;
   
   0,5 ar = 50 m2;
   
   Ar 9 000 000 = 900 000 000 m2.
2. Hectare
   
   The prefix hecto - means 102. On this basis, it is easy to see that 1 hectare is 100 times more Ara
   
   1 ha = 100 ar = 102 ar.
   
   To convert hectares to square meters, comnote the number 10 000. Enter the resulting unit of measure.
   
   For example,
   
   5 hectares = 500 ar = 50 000 m2;
   
   0.1 ha = 10 ar = 1 000 m2;
   
   Of 0.001 ha = 1 ar = 10 m2.
3. If you want to translate acres, say, in square decimeters, comnote available number of hectares per 1 000 000:
   
   1 ha = 1 000 000 dm2;
   
   0.87 hectares = 870 000 dm2.
4. To translate acres into square kilometers, divide the number of hectares by 100 (comnote 10 in degree-2):
   
   1 ha = 0,001 km2;
   
   500 ha = 5 km2;
   
   4,000 ha = 40 km2.
5. In some countries (e.g. UK, Canada, USA, Australia) to measure the area of land use such units as acres and square yards. These units are in English system of measures.
   
   1 acre is numerically equal to 4840 square yards and about 4046.86 square meters.
   
   1 acre = 4840 yd2 = 4046,86 m2 = 40,5, ar = 0, 405 ha;
   
   1 yard ≈ 0,9144 m, therefore, 1 yd2 ≈ 0, 8361 m2.