Do you know how many m2 per hectare?

Formally, the area in the Russian Federation is expressed in square meters, as well as multiples and sub-multiples to them. And in life we ​​often hear numbers with the addition of "weaving", "hectare", and those who have long graduated from school, the question arises: how much m2 per 1 ha? A hundred square meters?

Few official data on the use of the term "hectare"

Why, given a unit such as a square meter (abbreviated as m ² or sq. m.), square kilometer (abbreviation - km ²) we often hear the names of hectares, weaving? You cannot use extraneous units, there is the SI system, you must use it.

The point is that this is not an extraneous term. There are non-systemic units that are approved for use on a par with standard ones. And a hectare belongs to such non-systemic units, he has a considerable company - non-systemic, for example, an hour, a minute, a kilowatt-hour (you pay for it to the power grids) and a ton.

In Russia, GOST 8417-2002 is relevant, it says: "4.1 Units of the International System of Units, as well as decimal multiples and sub-multiples of these units, are subject to mandatory use." A hectare (designation Ha, in Russian Hectares) is indicated in table 2 of the Gost as an example of a derived unit, its international (m²) and Russian (m²) designation.

So the term is quite official, and you can use it without restriction.

We find out how many m2 are in 1 ha. To do this, let's look in the dictionary: One hectare is the area of ​​a square with a side of 100 meters. To calculate the number of square meters in a hectare of land, you need to remember school mathematics and multiply 100 by 100. A hectare is 10,000 m².

In strict and precise language of mathematics, this is expressed by the equality: 1 ha = 100 ap = 10000 m².

The international SI system is not a dogma, it also changes frequently. In 2019, the definitions of the last basic units have changed, and since May, absolutely all units do not depend on samples and are determined by exact formulas through the values ​​of physical constants. Earlier, the kilogram, for example, had a reference to the standard, now it is a rather complicated formula.

Is one hectare a lot or a little?

It depends on what you need to calculate. If we are talking about the area of ​​a leaf on the table - a hectare is too large, it is inconvenient to write down. This option uses square centimeters. If we compare the area of ​​countries - too small, the number will be very large. Here square kilometers are used.

Although due to the fact that the hectare is the standard of measurement in agriculture - the area of ​​agricultural land, the forests of countries are measured in hectares. So they write: "More than 9% of the entire land area of ​​the Earth is occupied by arable land, this is about a little more than 1.3 billion hectares." Or: "Forests in Russia occupy 809 million hectares."
In the United Kingdom and the United States, area is still measured in acres.

Let's look at some illustrative examples:

1. A basketball court measuring 28 by 15 meters has an area of ​​420 square meters (4.2 ares, 0.042 ha).
2. Moscow Red Square in the capital of Russia is 2.5 hectares (330 * 75 meters).
3. Times Square in New York - 6.6 hectares.
4. Central Park - 341 hectares.

Where are square meters and weaving used, and where hectares and square kilometers

In a square kilometer, a million square meters. m. They designate the areas of countries, big cities and continents. In hectares and thousands of hectares, the area of ​​the same type of large and medium-sized plots is measured - all arable land of the region, the area of ​​the Amazon forests, the area of ​​wheat growth, potatoes or rapeseed. Private small plots, vegetable gardens and orchards in villages, townships, small towns are designated by acres, an area in acres is written by publishing advertisements for sale in the newspaper and on the Internet. It is more correct to write not "weave", but ar - this is how the area of ​​a square with a side length of 10 meters is written. Its area (10 * 10) is exactly one hundred square meters, it is easy to remember, thanks to the popular name "weaving", and this is also a unit of area permitted by the regulations.

The term "ar" was introduced in France in the 18th century and is derived from the French word "are", meaning "plain, area, area, field". The word "hectare" is a multiple of the word "ar" and is formed by the prefix "hecto" - "one hundred". Based on the origin of the word, a hectare is “one hundred plots of 100 squares each”.

Houses, apartments, the area of ​​plots for communications, the area of ​​warehouses, offices and shops are measured in square meters.

There are also derivatives from the basic unit are. Decar (aka dunam, stremma), equal to 10 acres or a thousand square meters, is used in Iraq, Libya, Syria, Greece. Santiar, equal to 1 square meter - literally "a square with a side of 1 meter", is used to a limited extent in Cameroon and Italy.

 

Using units of measurement of different sizes is better and more convenient than always specifying square meters:

• area of ​​countries and regions in square kilometers;
• fields and forests in hectares;
• vegetable gardens, house plots and gardens in hundred parts;
• houses, garages and apartments in square meters.

Units indicating land area in Russia in the 19th century

If we asked a peasant in the Russian Empire of the 19th century, how many acres or hectares are in his land allotment, he would not understand us. At that time, the area was measured by square arshins, fathoms and tithes. There was also a "shock", it was believed that 10 kopecks of hay were collected from the tithe.

1 square fathom = 4.55 m².

1 tithe is equal to 1.093 hectares.

One tenth of the tithe was called a "shock."

The tithe in which the land was measured was only slightly more than a modern hectare. So if you see it in the book, you will roughly know how to count: "You know the forest behind our Levada, and you probably know a wide meadow behind the same forest: there are almost twenty dessiatines in it" (a quote from Gogol's book "Evenings on a Farm Near Dikanka"); large meadow, about 21 hectares. How much will it be in hundreds and square meters? We count in hundreds: 21 * 100 = 2100 ares. Two more zeros will be added in square meters. 210,000 m²... Can you imagine thirty soccer fields? It is easier to imagine a rectangle of 300 by 700 meters, this is exactly 21 hectares.

The allotted peasants, from which they paid the rent, were several tithes in size.

With the help of this table and a calculator, you can always calculate how many square meters in a hectare.
Conversion table - how many m2 per hectare

 

How to calculate how many square meters the plot is, how many hectares and what is the area of ​​the plot in hundred parts

If you want to change the size of a plot by buying land from a neighbor or adding an empty neighboring plot to yours - you cannot do without specialists!

To calculate the approximate area of ​​a rectangular area in hundred parts, you need to measure the two sides with a tape measure, a laser rangefinder or a fathom and multiply their length in tens of meters. The area of ​​a plot of 20 by 30 meters is calculated as 2 * 3 and is equal to 6 acres.

For a quick calculation in hectares, we multiply hundreds of meters of side lengths: a plot of 300 by 900 has a size of 27 hectares.

If the numbers are not very even, do not hesitate to use the calculator. Multiply the length by the width in meters, divide by 100 - you get the area in macaws. Divide by 100 again - that's hectares.

If the plot is irregular, for the calculation it is necessary to divide the plot into rectangular, triangular, trapezoidal pieces and calculate the sum of their areas.

Examples of calculations - how many square meters in a hectare of land:

1. The mow is 30 meters wide and 80 meters long. The mowing area is 30 * 80 = 240 m²... This is 240/100 = 2.4 acres (macaws) or 2.4 / 100 = 0.024 hectares.
2. There is a farmer's house next to the mowing, its dimensions are 10 by 20 meters. Land area occupied by the house, 200 m², 0.2 ares or 0.002 ha.

Accurate calculation of the land area

Unfortunately, the edges of the parcels are rarely even and the corners are rarely rectangular.If the area is really important, you will have to either master the tools of a land surveyor, or hire a specialist. There is no alternative to a specialist if you are going to sell or perform some other actions with your site, and you do not have a cadastral passport. In this case, you need to contact the specialists. They will take measurements on the ground, if necessary, satellite imagery and draw up documents, which will indicate exactly how many square meters, acres and hectares are at your disposal.

Field area measurement with a car navigator - video