You will need
• calculator;
• pencil;
• paper.
Instruction
1
To convert area measured in hectares, square kilometers, divide the number of hectares by 100 (or multiply by 0.01). As a formula this rule would resemble the following:

KKK = Kg / 100
or
KKK = Kg * 0,01
where:
KKK – the number of square kilometers
Kg – number of hectares.
2
Example: the area of the field is 10 hectares.

Question: how many square kilometers is equal to the area of this field?

Solution: 10 * 0,01 = 0,1.

Answer: the area of the field is 0.1 square kilometers.
3
If you do not have a calculator to translate hectares in square kilometers, take a paper and pencil. Then just move the decimal point in the number of hectares on the two digits to the left:

123,456 -> 1,23456,
that is, 123,456 hectares correspond 1,23456 square kilometers.
4
If the left of the decimal point has no two digits, you must add the number of insignificant zeros:

1,23456 -> 001,23456 -> 0,0123456.
5
If the decimal point in a number of hectares not at all (i.e. the number of hectares is an integer), then assign this point to the right of the number and shift it as described above, i.e.:

123456 -> 123456, -> 1234,56
or
1 -> 1, -> 001, -> 0,01
6
If the number of square kilometers (as in the last example) came out to be less than unity, then the result sometimes it is clearer to look in square meters. In the translation area from square kilometers to square meters, note that in one square kilometre – one million square meters. I.e. number of kilometers / square will need to be multiplied by 1,000,000. Then of 0.01 km2 from the previous example can be written as:
0,01 * 1000000 = 10000 (m2).
Thus, it appears that one hectare is ten thousand square meters.
7
To avoid confusion in the transfer area from one unit to another, use the following sign:

1 ar = 1 sotka = 100m2 = 0,0001 km2;
1 ha = 100 ar = 100 "Ares" = 10,000 m2 = 0,01 km2.