70 ft to meters. How many meters are there in a foot: a cheat sheet with data. Cubic volume measures

The foot is the basic unit by which length is measured in the English system of measures. Its important difference from many other quantities is that in different countries In the world, the length of a foot has always been very different. It was only in 1958 that units of length were unified in English-speaking countries. This has made it easier to convert feet to meters, but many still wonder how many meters are in a foot?

Often the question is why equal to foot in meters is asked by people studying foreign languages, since they regularly encounter an unusual measure of length in scientific articles, news publications and fiction. At the same time, feet are different - English, Russian, Roman.

How did foot get its name?

If you studied English at school or college, you know that the word foot is translated from English as foot. It can be assumed that the length of a foot is the same as the length of a person's foot.

But how can this be if everyone’s foot length is different? The fact is that many years ago there were no exact measures for measuring length, so people used the proportions of their own bodies. Of course, this is not the most precise measurement, but everyone was happy with it and coped with its function. On average, the length of an adult's foot is 28-30 cm, which is approximately comparable to a foot, but we will return to the exact parameters later.

The history of foot

A unit of measurement called the foot was actively used in English-speaking countries already in the 16th century. When the term was introduced, it was equated to the width of 64 grains of barley. Another meaning of the measure was also associated with agriculture - the plowman's stick, which varied in length from 12 to 16 feet.

In Rus', feet were also used, and they appeared during the reign of Peter I and one foot was equal to 12 inches. Also in those years, shipbuilding in Rus' was actively developing, so it was necessary to somehow connect Russian length measures with English ones. Everything was resolved quite simply: 1 fathom was equal to 7 feet.

In Europe, a foot was usually calculated by the length of 12 fingers, and even earlier the length of a foot was used. In general, the foot appeared in Ancient Egypt, and the Romans and Greeks popularized this measure. Sometimes the length of three palms was used to determine the length of a foot. Of course, today the conversion of feet to meters is carried out using more accurate system, and there are also convenient tables.

Application of feet in Russia

In English-speaking countries, feet are used in the same way as meters in Russia, but in our country feet are also common in certain areas. A non-systemic unit of measurement is used in the Russian Federation in aviation for:

• determining flight altitude;
• sink rate calculations;
• determining the aircraft's ascent speed.

In 2009, the Russian government approved a decree in which the foot was recognized as a unit of measurement, and a single stroke - ‘ is used for designation. Pilots have no difficulty converting feet to meters, and in most cases there is no need for it at all.

How many meters are in a foot?

The exact value of feet in terms of meters was determined only in 1958 at a special conference that brought together participants from many English-speaking countries. After the debate, the length of 1 foot in meters was unified - it was 0.3048 m. Below we will also look at a table that simplifies the conversion of 1, 10, 25, 50 feet into meters and vice versa, so you will understand everything.

Some are interested in a more complex question - how many square meters are in a square foot? Everything is calculated using standard formulas, so it turns out that:

• one square meter is equal to 10.76 square meters. feet;
• in every square foot there are 0.093 sq. m.

You can remember these ratios or calculate each time using standard mathematical formulas. Generally, square or cubic feet in square meters are translated extremely rarely, and more often it is necessary to convert the length from one measurement system to another. The table will help you figure out how to convert feet to meters:

Also, to complete the picture, we suggest you visually consider how meters are converted to feet. The situation is the opposite of converting feet to meters, but the table reflects all the ratios:

Length and distance converter Mass converter Bulk and food volume converter Area converter Volume and units converter in culinary recipes Temperature converter Pressure converter, mechanical stress, Young's modulus Energy and work converter Power converter Force converter Time converter Converter linear speed Flat Angle Thermal Efficiency and Fuel Efficiency Converter Number Converter to various systems notation Converter of units of measurement of quantity of information Exchange rates Dimensions women's clothing and shoes Sizes of men's clothing and shoes Angular velocity and rotational speed converter Acceleration converter Angular acceleration converter Density converter Specific volume converter Moment of inertia converter Torque converter Torque converter Specific heat of combustion converter (by mass) Converter of energy density and specific heat of combustion of fuel (by mass) Temperature difference converter Thermal expansion coefficient converter Thermal resistance converter Thermal conductivity converter Specific heat capacity converter Energy exposure and thermal radiation power converter Heat flux density converter Heat transfer coefficient converter Volume flow rate converter Mass flow rate converter Molar flow rate converter Mass flow density converter Molar concentration converter Mass converter concentration in solution Dynamic (absolute) viscosity converter Kinematic viscosity converter Surface tension converter Vapor permeability converter Vapor permeability and vapor transfer rate converter Sound level converter Microphone sensitivity converter Sound pressure level (SPL) converter Sound pressure level converter with selectable reference pressure Brightness converter Luminous intensity converter Illumination Converter Resolution Converter to computer graphics Frequency and wavelength converter Optical power in diopters and focal length Optical power in diopters and lens magnification (×) Converter electric charge Linear Charge Density Converter Surface Charge Density Converter Volume Charge Density Converter Converter electric current Linear current density converter Surface current density converter Electric field strength converter Electrostatic potential and voltage converter Converter electrical resistance Electrical resistivity converter Electrical conductivity converter Electrical conductivity converter Electrical capacitance Inductance converter American wire gauge converter Levels in dBm (dBm or dBmW), dBV (dBV), watts and other units Magnetomotive force converter Voltage converter magnetic field Magnetic flux converter Magnetic induction converter Radiation. Absorbed dose rate converter ionizing radiation Radioactivity. Radioactive decay converter Radiation. Exposure dose converter Radiation. Absorbed dose converter Converter decimal prefixes Data Transfer Typography and Imaging Unit Converter Timber Volume Unit Converter Calculation molar mass Periodic table of chemical elements by D. I. Mendeleev

1 foot = 30.48 centimeter [cm]

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 (British) maritime league (international) league (statutory) mile nautical mile (British) 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

More about length and distance

General information

Length is largest dimension bodies. 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, micrometers measure the size of microorganisms and cells, and in physics, the length of infrared electromagnetic radiation. A micrometer is also called a micron and is sometimes, especially in English 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 equal to speed movement of one nautical mile per hour.

Distance in astronomy

In astronomy they measure long distances, therefore, to facilitate calculations, special quantities have been adopted.

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 the parallax effect visible change 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 language 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, which adopts the metric system, yards are used to measure fabric and the length of swimming pools and sports fields such as golf courses and soccer fields.

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. Later the meter was equated to the wavelength orange line electromagnetic spectrum of a krypton atom ⁸⁶Kr 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.

Inch (from Dutch duim - thumb) - a unit of measurement of distance, exact linear value which varies in different countries. Usually the inch is understood as the so-called “international” or “English” inch, which since 1958 has been tied to the SI metric system.

Foot (English foot - foot) is a unit of distance measurement, the exact linear value of which, like inches, varies in different countries. Usually a foot is understood as the so-called “international” or “English” foot, which is equal to 12 inches, and since 1958 it has been tied to the SI metric system.

In the English system of measures, 1 inch = 1/12 feet = 1/36 yards.

Thus, at present, the following is understood by the inch and foot values:

• 1 inch = 2.54 cm
• 1 foot = 12 inches = 0.3048 meters

Designation

In modern Russian language it is generally accepted letter abbreviation There are no inches to indicate. Before the transition to the metric system, the abbreviation “dm” was used, but now this is how decimeters are designated. Most often the English designation is copied: the same double stroke as in the designation of arc seconds, placed without a space behind numerical value, for example: 3″ (3 inches). In English-speaking countries, the abbreviation “in” is also used (from the English inch - inch).

In modern Russian, there is no generally accepted letter abbreviation for feet, as well as inches. Most often, the English designation is copied: a foot is indicated as a single stroke, as in the designation of arc minutes, placed without a space behind the numerical value, for example: 3′ (3 feet). In English-speaking countries, the abbreviation “ft” is also used (from the English foot - foot, foot).

Origin

It is generally believed that the inch was originally defined as the length of the upper phalanx of the king's thumb. According to other sources, an inch was defined as 1/36 of a yard, which in turn was established by King Henry I of England in 1101 as the distance between the tip of the nose and the thumb of his outstretched hand. The “legal” inch, called the inch, was approved by King Edward II in 1324 as the length of three barley grains taken from the middle part of the ear and placed one end at the other. In English everyday life, the measure “barley grain”, equal to one third of an inch, is still used. It is important to note here that it is correct to denote inches using whole numbers and fractions rather than decimals.

Later, in the 16th century, the “legal” English foot appeared. It was defined as 1/16 of the total length of the left feet of the sixteen people leaving Matins on Sunday. With the help of this very witty and far-sighted for its time technical solution It was always possible to determine a foot relatively accurately, since the feet of sixteen randomly selected people from all those who gathered on Sunday for prayer naturally had very different lengths. By the way, the idea of ​​​​the need for an average statistical approach to improve the accuracy of determining the foot was used in the 16th century by the mathematician Clavius, known as the creator of the Gregorian calendar. He proposed calculating a geometric, that is, especially accurate (geometry for many years was the name for all mathematics) foot as the total width of sixty-four barley grains. This dramatically increased the accuracy of reproducing the size of a foot.

Production and sale of high-capacity army tents for use in all weather conditions.

To find out how many inches you need a simple web calculator.

Conversion table for feet and inches to centimeters

Enter the number of steps you want to convert to the left margin. In the field on the right you will see the calculation result. If you want to change your feet or inches in other units, just click the appropriate link.

What is a "leg"

A non-system block that is not part of the SI system.

In Russia, legs are used at SI stations in aviation. Foot (ft, ft, ‘) from the English word foot-foot. This unit of measurement is in the English system of measures. It was unified in 1958, this time with an "international" corollary of 0.3048 m.

In addition to the international foot, which is 30.48 cm, there are Amsterdam (11 inches), Britain, Baden, Warsaw, Danube, Greece, etc. In Russia, 1/7 feet have been saturated.

What is "centimeter"

Centimeter (cm cm) is a unit of length in the SI gravitational metric system, ISS and MTS-sub-m engines. This unit is also used to measure certain electrical and magnetic parameters (capacitance, inductance, rolling coefficient of friction, wavelength, mean free center, length optical path, focal length, Compton wavelength, de Broglie wavelength, etc.).

What is a big toe and a toe? How many meters are there in metres? How many centimeters are in an inch? How to translate?

• 1 meter(Leg) = 30.48 cm or 0.3048 m
• 1 inch(Inches) = 25.40 mm or 2.54 cm
• 1 meter = 12 cm
• 5 feet = 1.525 m or 152.5 cm
• 6 feet = 1.83 m or 183 cm

This table shows the relationship between degrees to centimeters and centimeters.

How to change centimeters to feet and inches, see HERE.

Popular news, discounts, promotions

Reprinting, posting articles on websites, forums, blogs, contact groups and messaging is NOT allowed

Football calculator in centimeters

• 1 meter(Leg) = 30.48 cm or 0.3048 m
• 1 inch(Inches) = 25.40 mm or 2.54 cm
• 1 meter = 12 cm
• 5 feet = 1.525 m or 152.5 cm
• 6 feet = 1.83 m or 183 cm

This table shows the ratio of centimeters to shoes with your thumb.

For a more accurate translation of feet and inches, see HERE.

Often, both in fiction and in some specialized publications, you can find the length measurement value - feet. How many meters and centimeters are we used to? It is difficult to give a definite answer to this question. The thing is that it (the answer) depends on what kind of foot is meant - English, Roman, Russian or Hamburg.

You see how many of these quantities there are. In general, every more or less advanced country had its own foot.

In order to understand why such confusion occurs, let's just try to figure out what this word means, and then we will find out how many centimeters are in a foot.

So, in English this word is translated as foot, everyone knows this. What is your foot length? You will say that everyone's legs are different, and you will be right. But in ancient times people did not have anything specific to measure at hand. So they had to use their own body. They measured length in inches (thumbs), feet (feet), and yards.

I left with the last one interesting story. It was introduced into use by the English king Edgar, who reigned in 959-975. Without further ado, this monarch decided that one yard equal to the distance from the tip of the royal nose to the middle finger of His Royal Majesty's outstretched hand. The will of the king is the law, so the whole country switched to new standard. But Edgar was not eternal, and the next monarch had different proportions. I had to change the length measure. Why are we talking about yards now, if before this we were talking about how many meters there are in a foot? So they are very closely related to each other. There are exactly 3 feet in one yard. In turn, the latter contains 12 inches.

Why exactly 12, and not the usual 10? After all, counting in tens is much easier. We have exactly 10 fingers on our hands, not twelve.

This, of course, is a completely different story, but it is also not without its originality. The fact is that 10 is divisible without a remainder only by 2 and 5, not counting one and itself, of course. But you can divide 12 by 2, and by 3, and by 4, and by 6. Do you feel the difference? That’s why when asked how many inches a foot is, you can confidently answer: “12.” And all these divisions and bindings were needed for only one thing - for international trade. If merchants brought it to London, they sold it English feet. And when they brought English cloth to Russia, they were forced to carry out calculations in Russian measures of length.

And a foot is how many arshins or even fathoms? But we need to measure.

Today, due to general globalization, almost all countries have long switched to SI. Of the major powers, only England is opposed, but it has also slightly unified its favorite foot. How much effort was spent to draw a parallel between the metric system and English measures of length? A lot, but whether it was worth it, or whether it would have been easier for everyone to switch to SI, is a separate question.

As a result of much debate and numerous measurements, it is now generally accepted that one international foot is equal to 0.3048 m. If you need to find out the length of a yard, simply multiply this number by three.

If we take shoe sizes, then a foot length of one foot corresponds to approximately 45.5 Russian size and 47 European size.

The question "How much is a foot?" occurs, as a rule, among students foreign language, and constantly encountering this incomprehensible unit of measurement of length. It is found in fiction, scientific articles, and also in some news publications. For people who don't know how much a foot is, these passages of text are simply incomprehensible. For example, if a British person is 5 feet tall, then he is considered short, and if he is 6 feet tall, he is considered tall. In any case, there is no definite answer to this question, because feet are different. For example, English will be different from Russian, and Russian will be different from Roman and Hamburg. To understand where the confusion comes from, let's look at how to convert feet to cm.

Why is foot called that?

Those who have at least once encountered English at school know that foot is a foot. It is logical to assume that the length of a foot is comparable to the length of an adult’s foot.

The observation that people’s legs are different to one degree or another is reasonable. But ten centuries ago there were no exact measures of length, and man used what he always had - body proportions. Yes, such a measurement was not entirely accurate, but it fulfilled its main function. By the way, the average leg length of an adult man is just 28-30 cm. This is a foot. Other similar measures of length are the yard and the inch.

How much is a foot, and how is it related to a yard?

The most famous case of the introduction of a new unit of length relates to the appearance of the yard. King Edgar, who ruled Britain a thousand years ago, decided to introduce new measure length. It was equal to the distance from the king's nose to the end of the middle finger of his outstretched hand, and was called a yard. The human body is proportional, so exactly 3 feet and, accordingly, 36 inches fit into one yard. By the way, approximately one inch equal to height thumb Obeying the king's order, the country began to use a new and not very convenient unit of measurement. Everything was fine until the king died. The body proportions of the new ruler were different, and the numerical expression of yard, foot and inch had to be adjusted.

Are English length measures convenient?

We are more accustomed to using decimal systems calculus, because we have 10 fingers and toes, our meter has 10 centimeters, and so on. The pragmatic British proceeded from other considerations.

10 is a number that is divisible by 2 and 5 without a remainder. In contrast, 12 can be divided by 2, 6, 4, and 3. This is much more convenient for trade, since British sailors did business all over the world. Standardization was needed to facilitate trading operations. Naturally, when bringing fabric to London, it was sold by the foot, but when dealing with Russia, traders had to use local length measures.

SI and FT: are they compatible?

The intensification of trade operations and the increase in trade turnover, combined with universal trade, led to the need for unified measures of length in the world. The overwhelming majority of states adopted the so-called SI system, but the British Conservatives showed their national character here too. They resisted the introduction of SI for a long time, but still they had to slightly unify the foot for the convenience of doing business with international partners. If you convert feet to meters according to the SI system, it will be approximately 0.3 meters. For more accurate calculations, the full value containing more decimal places is used. That is, even the inhabitants of Albion had to answer the question to the world, how much is a foot? If you try to use feet to determine shoe size, then according to the European standard it will be size 47, and according to Russian - 45-46.

It is interesting that Rus' also had its own measures of length. During the reign of Peter I, in connection with the beginning of shipbuilding, it was necessary to connect the Russians and English measures length. A match was quickly found. Thus, the popular measure of arshin was 28 inches, and a fathom was 7 feet, and so on.