1km = 1000m 1m = 1DM = 10cm 1m = 100cm 1cm = 10mm。

Area unit conversion 1 km2 =100ha10000m21m2 =100m21m2 =

Unit of volume conversion 1 m3 = 1000 cubic decimeter 1 cubic decimeter = 1000 cubic centimeter.

2 hectares and square kilometers of information is not less than 200 words.

Information about hectares

The metric unit of hectare (gō ngqǐ ng, Hector (ha)).

Nickname: 100 meter square (easy to remember and convert).

Symbol: huh?

The hectare is the metric unit (international unit) of area. A piece of land with an area of one hectare, 10000 square meters, is slightly larger than a standard football field.

There are three types of land areas in China: square meters, hectares and square kilometers.

Area conversion

Metric system:

1 hectare =15mu =10000m2.

1 ha = 1 10,000 m2

1 km2 = 100 hectare

Square kilometer data

Square kilometer (symbol km2) is the metric unit (SI unit) of area, which is defined as "the area of a square with a side length of 1km" and is also the unit for measuring land.

Unit conversion:

1km2 (1km2) =10,000,000m2 =100 hectares.

3. Knowledge about "hectares"

The letter of hectare metric plot unit indicates: hm^2 hectare is the metric unit of area (international unit). A piece of land with an area of one hectare is 10000 square meters, which is about equivalent to a standard football field.

The unit symbol of the hectare is "hm2", where hm stands for 1 00m, and hm2 stands for the square of100m (in English, square hectometer), that is,10000m2, that is,1hectare.

In addition, hectares can also be represented by ha, which is the English abbreviation of hectares. Ha is not recommended in China.

There are three types of land areas in China: square meters (㎡), hectares (HM ㎡) and square kilometers (KM ㎡).

Level 4.4 summary, 2 hectares and square kilometers.

Summary of hectares and square kilometers

First, the speed of progress.

The square with a side length of 1000 meters has an area of 1 square kilometer.

The square with a side length of 100 meters has an area of 1 hectare.

1 km2 = 100 hectare

1 ha = 1 10,000 m2

1 km2 = 100 0000 m2

That is to say, the propulsion rate between square kilometers and hectares of the clubhouse is 100, between hectares and square meters is 100, and between square kilometers and square meters is 1000000.

Second, the unit conversion

Method: From large unit to small unit, the rate of progress (or just add a few zeros after it, such as the rate of progress is 100, plus two zeros). From small units to large units, divide by the propulsion rate (or just add a few zeros after it, for example, the propulsion rate is 100, plus two zeros).

The conversion unit is mainly concerned; (1) Think clearly about the propulsion speed (2) Judge clearly whether it is "from big to small" or "from small to big".