The need to measure the distance and land area has existed since ancient times, when ancient people began to move around the territories, use plots of soil for growing plants, and separate the territory for the existence of their tribe. Units of measurement have come a long way. Their names and sizes have changed.
Examples of Russian units of measurement of lengths that have come down to us are: a mile, a verst, a sazhen, an arshin, a vershok.The area in Russia was measured: a square verst, a tithe, a square sazhen.
1960 was the year of the Eleventh General Conference on Weights and Measures. At it, the participants approved the international system of units of measurement SI. 7 basic, additional and derived units of measurement were adopted.
The modern metric system is used in almost all countries of the planet. According to the SI system, the basic unit of measurement for length is the meter, and for area, the square meter.
Where are hectares and acres used
The standard use of a hectare in Russia is to measure the area of land. However, the official units of the system are also used for the same purposes. SI - square meters.
In most cases, the calculation of the land area in hectares is carried out to determine the land tax and land share. To do this, after measuring the area, its area is calculated and converted into points, which are converted into a personal coefficient. Calculation of the area in hectares will also be needed in the areas of land planning, urban planning and forestry.
Do not do without measuring the area in hectares in sports. For example, the calculation of the field area of the well-known and beloved American game - rugby, takes place exclusively in hectares. An equally interesting fact: the football field where international matches are held has a recommended size of 105 by 86 meters and an area of 0.714 hectares.
The calculation of the plot area in acres is used for the sale and purchase of land.
What is 1 hectare
Hectare (designation: Russian - ha, international - ha; from hecto- and ar) - a unit that measures the area (not included in the C system). In size, a hectare is equal to the area of a square, the side of which is 100 m. It exists in the legal and metric systems. In the Russian Federation, the unit of measurement is approved for use without limitation of time and with the scope of application in agriculture and forestry.
Hectare size in square meters
The area of the land plot, where both the length and width is equal to one hundred meters - this is 1 ha, it is equal to 10,000 meters squared. If you know the dimensions of the plot required for the calculation (length and width), then determining the number of hectares in the area is quite simple.
To do this, take a pen, paper and a calculator, and do simple calculations:
- Determine the area of the plot. To do this, just multiply the length of the area by the width.
- If the result is more than 10,000 square meters, then your plot is more than one hectare.
- To accurately determine the number of hectares, divide the result obtained in the first step by 10000.
Remember! On one square kilometer, 100 plots of 1 hectare can be located.
What is a cell
Weaving is a colloquial word derived from the numeral "hundred". Saying "weave of land", they mean a plot whose area is 1ar.
Ar (Russian designation a) is the unit by which area is measured. Ap is not included in the international SI system and means the area of an equilateral quadrangle with a side of 10 meters. It is the official unit for measuring area in the French Republic.
1 a \u003d 100 square meters \u003d 0.01 ha.
In order to imagine this distance, take 12 to 14 medium steps, then make a 90-degree turn and repeat. The resulting square is the weave of the earth. A hundredth of something is also called a hundredth.
It is convenient to use this type of land calculation both in the sale and construction, and when sowing garden and garden plots.
How many acres in a hectare
For accurate calculations of land area, you need to know the number of acres per hectare. One hectare is one hundred acres.
In order to convert the number of acres to a hectare, there are two ways:
- The first way: divide the number of acres by 100. The resulting number is the area of \u200b\u200bthe plot in hectares.
- Second: multiply the number of acres by 0.01.
If after conversion the number of hectares is less than one, then it is more convenient to write down this area in square meters. To do this, the number of hectares is multiplied by 10,000.
In order not to make a mistake in the calculation, remember the ratios:
- 1 s. (weaving) = 100 square meters = 1 ar = 0.0001 sq. km.
- 100 s. (hundredths) = 10000 sq. m. \u003d 1 ha \u003d 100 are \u003d 0.01 sq. km.
For an ordinary summer resident, it makes no sense to acquire a large amount of land. He has enough space for a good rest. But the farmer will need a large plot. Properly calculated hectares and acres will help you determine the land tax and land share.
Irina, p. Urusovo, Lipetsk region
We want to put greenhouses, we need to make calculations. Tell me, how many acres and square meters in 1 ha?
If you indicate the area of the field with a side of several kilometers, then the recording of the site measurements will be very multi-digit and difficult to sound. Therefore, to measure and record very large areas, it is more convenient to use such units as weave and hectare. Let's try to calculate how many square meters are contained in a hectare and how many acres is 1 ha.
Square meter
The square meter is a unit of area measurement. Visually, you need to draw a square with a side of 1 m. The area of \u200b\u200bthe square is 1 square meter (we consider 1 x 1 \u003d 1), hence the name.
Weaving
Weave is also a unit of area measurement. We present a square with a side equal to 10 m. The area of \u200b\u200bweaving is 100 square meters (we consider 10 x 10 \u003d 100). Easy to remember: weaving - one hundred square meters.
Hectare
Hectare is the most popular unit of measure in the agricultural sector. To calculate the area of a hectare, a square with a side equal to 100 m is visually drawn. The area of a hectare is 10,000 square meters (100 x 100 \u003d 10,000).
Thus, we get a visual comparison of units.
This online calculator helps to calculate, determine and calculate the area of a land plot online. The presented program is able to correctly suggest how to calculate the area of irregularly shaped land plots.
Important! The important area should approximately fit into the circle. Otherwise, the calculations will not be entirely accurate.
Specify all data in meters
A B, D A, C D, B C- The size of each side of the plot.
According to the data entered, our program will calculate online and determine the area of land in square meters, acres, acres and hectares.
Method for determining the size of the site by manual method
There is no need to use complicated tools to correctly calculate the area of plots. We take wooden pegs or metal rods and set them in the corners of our yard. Next, using a measuring tape, we determine the width and length of the plot. As a rule, it is sufficient to measure one width and one length, for rectangular or equilateral areas. For example, we got the following data: width - 20 meters and length - 40 meters.
Next, we proceed to the calculation of the area of the plot. With the correct shape of the plot, you can use the geometric formula for determining the area (S) of the rectangle. According to this formula, you need to multiply the width (20) by the length (40), that is, the product of the lengths of the two sides. In our case, S=800 m².
After we have determined our area, we can determine the number of acres on the land. According to generally accepted data, in one hundred square meters - 100 m². Further, using simple arithmetic, we will divide our parameter S by 100. The finished result will become equal to the size of the plot in acres. For our example, this result is 8. Thus, we get that the area of the site is eight acres.
In the case when the land area is very large, it is best to perform all measurements in other units - in hectares. According to generally accepted units of measurement - 1 ha = 100 acres. For example, if our land plot, according to the measurements obtained, is 10,000 m², then in this case its area is 1 hectare or 100 acres.
If your site is irregular in shape, then in this case the number of acres directly depends on the area. It is for this reason that with the help of an online calculator you can correctly calculate the parameter S of the plot, and then dividing the result by 100. Thus, you will receive calculations in hundredths. This method makes it possible to measure plots of complex shapes, which is very convenient.
common data
The calculation of the area of land plots is based on classical calculations, which are performed according to generally accepted geodetic formulas.
In total, several methods are available for calculating the area of land - mechanical (calculated according to the plan using measuring palettes), graphic (determined according to the project) and analytical (using the area formula according to the measured boundary lines).
To date, the most accurate method is deservedly considered - analytical. Using this method, errors in the calculations usually appear due to inaccuracies in the field of the measured lines. This method is also rather complicated if the boundaries are curvilinear or the number of angles in the plot is more than ten.
A little easier in terms of calculations is the graphical method. It is best used when the lot boundaries are broken lines with few turns.
And the most accessible and simple way, and the most popular, but at the same time the biggest error is the mechanical method. Using this method, you can easily and quickly calculate the area of land of a simple or complex shape.
Among the serious shortcomings of the mechanical or graphical method, the following are distinguished, in addition to errors in measuring the area, an error due to paper deformation or an error in drawing up plans is added to the calculations.
