Almost every person has definitely heard the expression “linear meter”. For many, this definition remains quite difficult, since it is not at all clear what the difference is between squares. m. from ordinary. What are we talking about?

One linear meter is equal to the usual length of one meter. It is used to measure goods that have a certain width, for example, linoleum. Calculating the cost of a product based on linear meters is much easier than calculating the cost per square meter.

For example, you need to purchase a carpet in a store, 2.5 wide and a certain length. It is not very convenient to make a calculation of 1 m2, such a segment is not very convenient. To do this, you need to determine the area of ​​the product. Then divide it into squares. In other words, you need to perform difficult mathematical calculations.

It is much easier to carry out calculations on a linear basis. To determine the cost of the product, you will need to multiply the length of the carpet segment by the number of meters.

There is a fairly large list of goods in which the cost is calculated by the number of linear meters. These include.

• Fabrics.
• Linoleum.
• Carpet.
• Finishing film.
• Rolled polyethylene.
• Electric wires.
• All kinds of pipes.
• Various fences.
• Fences.

Furniture calculation

Many consumers believe that calculation by linear meters only applies to rolled materials. However, this opinion is not entirely correct. When purchasing a product, we are often faced with a certain roll width. Linear lengths often determine the cost of furniture.

To make it clear, let's look at the following example.

The furniture manufacturer made an approximate calculation. To completely fill a three-meter kitchen, taking into account all the furniture details, he will need 30,000 rubles. Consequently, the cost of 1 m of furniture will be 10,000 rubles. In other words, this cost will correspond to the price of one linear meter. Based on these fairly simple mathematical calculations, the furniture manufacturer can tell the customer what the cost of a set of furniture of the corresponding sample will be.

However, it is necessary to take into account one important nuance. When calculating the price per line. m, only the cost of the cheapest fittings and materials was taken into account. Sometimes the cost of fittings is not included in the calculation at all.

Therefore, if you are given a very tempting offer, you must find out what material the product is made of and what fittings are installed on it. In this way, new customers are often attracted.

How many mm in a linear meter

As already mentioned, one linear meter is equal to one standard meter. It turns out that there are 1000 mm in 1 linear meter.

Cheat sheet

So, to make it easier to understand the units of measurement, they can be summarized in one table, in which their relationship will be visible, and it will be possible to quite easily convert one unit to another.

What does the term "square meter" mean?

This unit is designed to calculate the area of ​​a square, each side of which will be 1 meter. To determine the size of the area, you need to multiply the height and length of the product. The short form used for designation is square. m.

Today this unit is found almost everywhere in our lives. The most obvious example is the dimensions of a living space. In other words, if we are talking about an apartment of 16 m2, then the floor area is equal to this value.

The square meter is most often found in the construction industry. To determine the area of ​​a wall that is 6 m long and 4 m high, you simply need to multiply six by four. It turns out that the wall area is 24 m2.

Everything is measurable. It is a fact. But the quantities used are different. Most rolled goods, fixtures and kitchenware are today measured in linear metres. To be more precise, a linear meter is how many meters it is in length. Width is not taken into account.

In one store these stripes are in this form. But in the other there is simply one wide strip of 3 meters and 10 meters long. Essentially, this is what we need. Since the cost is indicated in linear meters, we will pay three times more in the first store than in the second. The savings are huge!

Remember, 1 linear meter is 1 meter of product in length. And then it doesn’t matter what the width is. The price will no longer change.

Carefully!

Very often, the product information card only indicates the number of linear meters and the price. This means that we know nothing about the width of the product. If you buy everything in a store or at a bazaar, you can bring your own tape measure.

On the Internet, such data is often hidden. You cannot order a product without making sure of its parameters. It's worth calling the store and finding out its width.

If you find two identical items with different prices, do not rush to order the cheap one. It is possible that the width of that product will not suit you.

Marking fabric is, although not simple, but accurate. With kitchens, which are also measured in linear meters, everything is much more complicated. Usually, we take into account 1 meter of a standard headset. That is, simple cabinets and tables are always used for miscalculations. All additional decorative elements are negotiated separately.

If you buy a ready-made kitchen, then information about linear meters is not particularly important. You already see the finished price tag and decide whether the price is suitable or not. But with individual orders, you need to carefully consider everything.

It is important to emphasize that you can never know the exact amount in advance. We can only judge the minimum cost of 1 linear meter of your future kitchen.

There are two popular situations in which the answers are completely different:

1. Accurate calculation. You order a regular kitchen, where all the drawers, cabinets and tables are of standard sizes. You don't change anything. The final price may differ slightly from the planned one.

2. Completely inaccurate calculation. The kitchen is completely original. All cabinets and drawers are designed for your convenience and the size of dishes and furniture. The headset fits exactly into the design of the room. The final price can be several times higher.

Why is the total growing?

Converting linear meters is difficult. And for the sake of a new idea, you have to put up with the pricing policy. To cut costs, it is worth combining different components. That is, it is necessary to use as many standard elements as possible, diluting them with custom ones. This way you will get a kitchen that fits well into the interior and save your budget.

Don't forget that different materials and design features increase the cost. One linear meter of a cabinet can become more expensive if you decide to install not 4, but 5 drawers in it. Each detail requires additional expenses. Carvings or decorative stickers are far from cheap.

Alternative to linear meter

Many stores calculate prices based on ready-made kitchens. You choose the model you like, see its price, and then change it a little, if necessary. In such cases, it is easier to evaluate a future purchase.

As a result, we see that a linear meter is a value that is used to measure many products, from fabric to kitchen. It specifies the length without specifying the width. In order not to make a mistake in purchasing, you need to clarify all the points. If the Internet refuses to tell you the width, then you shouldn’t take the risk. After all, you can simply lose your money.

The sun is the source of life on the planet. Its rays provide the necessary light and warmth. At the same time, ultraviolet radiation from the Sun is destructive for all living things. To find a compromise between the beneficial and harmful properties of the Sun, meteorologists calculate the ultraviolet radiation index, which characterizes the degree of its danger.

What kind of UV radiation from the sun is there?

Ultraviolet radiation from the Sun has a wide range and is divided into three regions, two of which reach the Earth.

• UVA. Long-wave radiation range

  315–400 nm

  The rays pass almost freely through all atmospheric “barriers” and reach the Earth.

• UV-B. Medium wave range radiation

  280–315 nm

  The rays are 90% absorbed by the ozone layer, carbon dioxide and water vapor.

• UV-C. Shortwave range radiation

  100–280 nm

  The most dangerous area. They are completely absorbed by stratospheric ozone without reaching the Earth.

The more ozone, clouds and aerosols in the atmosphere, the less the harmful effects of the Sun. However, these life-saving factors have a high natural variability. The annual maximum of stratospheric ozone occurs in spring, and the minimum in autumn. Cloudiness is one of the most variable characteristics of weather. The carbon dioxide content also changes all the time.

At what UV index values ​​is there a danger?

The UV index provides an estimate of the amount of UV radiation from the Sun at the Earth's surface. UV index values ​​range from a safe 0 to an extreme 11+.

• 0–2 Low
• 3–5 Moderate
• 6–7 High
• 8–10 Very high
• 11+ Extreme

In mid-latitudes, the UV index approaches unsafe values ​​(6–7) only at the maximum height of the Sun above the horizon (occurs in late June - early July). At the equator, the UV index reaches 9...11+ points throughout the year.

What are the benefits of the sun?

In small doses, UV radiation from the Sun is simply necessary. The sun's rays synthesize melanin, serotonin, and vitamin D, which are necessary for our health, and prevent rickets.

Melanin creates a kind of protective barrier for skin cells from the harmful effects of the Sun. Because of it, our skin darkens and becomes more elastic.

The hormone of happiness serotonin affects our well-being: it improves mood and increases overall vitality.

Vitamin D strengthens the immune system, stabilizes blood pressure and performs anti-rickets functions.

Why is the sun dangerous?

When sunbathing, it is important to understand that the line between the beneficial and harmful Sun is very thin. Excessive tanning always borders on a burn. Ultraviolet radiation damages DNA in skin cells.

The body's defense system cannot cope with such aggressive influence. It lowers immunity, damages the retina, causes skin aging and can lead to cancer.

Ultraviolet light destroys the DNA chain

How the Sun affects people

Sensitivity to UV radiation depends on skin type. People of the European race are the most sensitive to the Sun - for them, protection is required already at index 3, and 6 is considered dangerous.

At the same time, for Indonesians and African Americans this threshold is 6 and 8, respectively.

Who is most influenced by the Sun?

People with fair hair

skin tone

People with many moles

Residents of mid-latitudes during a holiday in the south

Winter lovers

fishing

Skiers and climbers

People with a family history of skin cancer

In what weather is the sun more dangerous?

It is a common misconception that the sun is dangerous only in hot and clear weather. You can also get sunburned in cool, cloudy weather.

Cloudiness, no matter how dense it may be, does not reduce the amount of ultraviolet radiation to zero. In mid-latitudes, cloudiness significantly reduces the risk of getting sunburned, which cannot be said about traditional beach holiday destinations. For example, in the tropics, if in sunny weather you can get sunburned in 30 minutes, then in cloudy weather - in a couple of hours.

How to protect yourself from the sun

To protect yourself from harmful rays, follow simple rules:

Spend less time in the sun during midday hours

Wear light-colored clothing, including wide-brimmed hats

Use protective creams

Wear sunglasses

Stay in the shade more on the beach

Which sunscreen to choose

Sunscreens vary in degree of sun protection and are labeled from 2 to 50+. The numbers indicate the proportion of solar radiation that overcomes the protection of the cream and reaches the skin.

For example, when applying a cream labeled 15, only 1/15 (or 7 %) of the ultraviolet rays will penetrate the protective film. In the case of cream 50, only 1/50, or 2 %, affects the skin.

Sunscreen creates a reflective layer on the body. However, it is important to understand that no cream can reflect 100% of ultraviolet radiation.

For everyday use, when the time spent under the Sun does not exceed half an hour, a cream with protection 15 is quite suitable. For tanning on the beach, it is better to take 30 or higher. However, for fair-skinned people it is recommended to use a cream labeled 50+.

How to Apply Sunscreen

The cream should be applied evenly to all exposed skin, including the face, ears and neck. If you plan to sunbathe for a long time, then the cream should be applied twice: 30 minutes before going out and, additionally, before going to the beach.

Please check the cream instructions for the required volume for application.

How to Apply Sunscreen When Swimming

Sunscreen should be applied every time after swimming. Water washes away the protective film and, by reflecting the sun's rays, increases the dose of ultraviolet radiation received. Thus, when swimming, the risk of sunburn increases. However, due to the cooling effect, you may not feel the burn.

Excessive sweating and wiping with a towel are also reasons to re-protect the skin.

It should be remembered that on the beach, even under an umbrella, the shade does not provide complete protection. Sand, water and even grass reflect up to 20% of ultraviolet rays, increasing their impact on the skin.

How to protect your eyes

Sunlight reflected from water, snow or sand can cause painful burns to the retina. To protect your eyes, wear sunglasses with a UV filter.

Danger for skiers and climbers

In the mountains, the atmospheric “filter” is thinner. For every 100 meters of height, the UV index increases by 5 %.

Snow reflects up to 85 % of ultraviolet rays. In addition, up to 80 % of the ultraviolet reflected by the snow cover is reflected again by clouds.

Thus, in the mountains the Sun is most dangerous. It is necessary to protect your face, lower chin and ears even in cloudy weather.

How to deal with sunburn if you get sunburned

Use a damp sponge to moisten the burn.

Apply anti-burn cream to the burned areas

If your temperature rises, consult your doctor; you may be advised to take an antipyretic

If the burn is severe (the skin swells and blisters greatly), seek medical attention

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1 meter [m] = 0.001 kilometer [km]

Initial value

Converted value

meter exameter petameter terameter gigameter megameter kilometer hectometer decameter decimeter centimeter millimeter micrometer micron nanometer picometer femtometer attometer megaparsec kiloparsec parsec light year astronomical unit league naval league (UK) maritime league (international) league (statutory) mile nautical mile (UK) nautical mile (international) mile (statutory) mile (USA, geodetic) mile (Roman) 1000 yards furlong furlong (USA, geodetic) chain chain (USA, geodetic) rope (English rope) genus genus (USA, geodetic) pepper floor (English) . pole) fathom, fathom fathom (US, geodetic) cubit yard foot foot (US, geodetic) link link (US, geodetic) cubit (UK) hand span finger nail inch (US, geodetic) barley grain (eng. barleycorn) thousandth of a microinch angstrom atomic unit of length x-unit Fermi arpan soldering typographical point twip cubit (Swedish) fathom (Swedish) caliber centiinch ken arshin actus (Ancient Roman) vara de tarea vara conuquera vara castellana cubit (Greek) long reed reed long elbow palm "finger" Planck length classical electron radius Bohr radius equatorial radius of the Earth polar radius of the Earth distance from the Earth to the Sun radius of the Sun light nanosecond light microsecond light millisecond light second light hour light day light week Billion light years Distance from the Earth to the Moon cables (international) cable length (British) cable length (USA) nautical mile (USA) light minute rack unit horizontal pitch cicero pixel line inch (Russian) inch span foot fathom oblique fathom verst boundary verst

Convert feet and inches to meters and vice versa

foot inch

m

Linear charge density

More about length and distance

General information

Length is the largest measurement of the body. In three-dimensional space, length is usually measured horizontally.

Distance is a quantity that determines how far two bodies are from each other.

Measuring distance and length

Units of distance and length

In the SI system, length is measured in meters. Derived units such as kilometer (1000 meters) and centimeter (1/100 meter) are also commonly used in the metric system. Countries that do not use the metric system, such as the US and UK, use units such as inches, feet and miles.

Distance in physics and biology

In biology and physics, lengths are often measured at much less than one millimeter. For this purpose, a special value has been adopted, the micrometer. One micrometer is equal to 1×10⁻⁶ meters. In biology, the size of microorganisms and cells is measured in micrometers, and in physics, the length of infrared electromagnetic radiation is measured. A micrometer is also called a micron and is sometimes, especially in English-language literature, denoted by the Greek letter µ. Other derivatives of the meter are also widely used: nanometers (1 × 10⁻⁹ meters), picometers (1 × 10⁻¹² meters), femtometers (1 × 10⁻¹⁵ meters and attometers (1 × 10⁻¹⁸ meters).

Navigation distance

Shipping uses nautical miles. One nautical mile is equal to 1852 meters. It was originally measured as an arc of one minute along the meridian, that is, 1/(60x180) of the meridian. This made latitude calculations easier, since 60 nautical miles equaled one degree of latitude. When distance is measured in nautical miles, speed is often measured in knots. One sea knot equals a speed of one nautical mile per hour.

Distance in astronomy

In astronomy, large distances are measured, so special quantities are adopted to facilitate calculations.

Astronomical unit(au, au) is equal to 149,597,870,700 meters. The value of one astronomical unit is a constant, that is, a constant value. It is generally accepted that the Earth is located at a distance of one astronomical unit from the Sun.

Light year equal to 10,000,000,000,000 or 10¹³ kilometers. This is the distance that light travels in a vacuum in one Julian year. This quantity is used in popular science literature more often than in physics and astronomy.

Parsec approximately equal to 30,856,775,814,671,900 meters or approximately 3.09 × 10¹³ kilometers. One parsec is the distance from the Sun to another astronomical object, such as a planet, star, moon, or asteroid, with an angle of one arcsecond. One arcsecond is 1/3600 of a degree, or approximately 4.8481368 microrads in radians. Parsec can be calculated using parallax - the effect of visible changes in body position, depending on the observation point. When making measurements, lay a segment E1A2 (in the illustration) from the Earth (point E1) to a star or other astronomical object (point A2). Six months later, when the Sun is on the other side of the Earth, a new segment E2A1 is laid from the new position of the Earth (point E2) to the new position in space of the same astronomical object (point A1). In this case, the Sun will be at the intersection of these two segments, at point S. The length of each of the segments E1S and E2S is equal to one astronomical unit. If we plot a segment through point S, perpendicular to E1E2, it will pass through the intersection point of segments E1A2 and E2A1, I. The distance from the Sun to point I is segment SI, it is equal to one parsec, when the angle between segments A1I and A2I is two arcseconds.

On the image:

• A1, A2: apparent star position
• E1, E2: Earth position
• S: Sun position
• I: point of intersection
• IS = 1 parsec
• ∠P or ∠XIA2: parallax angle
• ∠P = 1 arcsecond

Other units

League- an obsolete unit of length previously used in many countries. It is still used in some places, such as the Yucatan Peninsula and rural areas of Mexico. This is the distance a person travels in an hour. Sea League - three nautical miles, approximately 5.6 kilometers. Lieu is a unit approximately equal to a league. In English, both leagues and leagues are called the same, league. In literature, league is sometimes found in the title of books, such as “20,000 Leagues Under the Sea” - the famous novel by Jules Verne.

Elbow- an ancient value equal to the distance from the tip of the middle finger to the elbow. This value was widespread in the ancient world, in the Middle Ages, and until modern times.

Yard used in the British Imperial system and is equal to three feet or 0.9144 meters. In some countries, such as Canada, where the metric system is adopted, yards are used to measure fabric and the length of swimming pools and sports fields and fields, such as golf and football courses.

Definition of meter

The definition of meter has changed several times. The meter was originally defined as 1/10,000,000 of the distance from the North Pole to the equator. Later, the meter was equal to the length of the platinum-iridium standard. The meter was later equated to the wavelength of the orange line of the electromagnetic spectrum of the krypton ⁸⁶Kr atom in a vacuum, multiplied by 1,650,763.73. Today, a meter is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second.

Computations

In geometry, the distance between two points, A and B, with coordinates A(x₁, y₁) and B(x₂, y₂) is calculated by the formula:

Calculations for converting units in the converter " Length and distance converter" are performed using unitconversion.org functions.