Everything in the world obeys numbers. They make it easier for a person to live, help create the latest technical innovations. Thanks to them, life does not stand still. People have spent a long time trying to subdue numbers, creating standard measures of length and weight. And the foot also has a long and interesting history.

It is the unit of measure used to determine length in English-speaking countries. The geometric foot already existed in the 16th century. When this term was introduced into use, it was equated to 64 barley grains folded in width. Another meaning of this measure was associated with agriculture - the plowman's stick, which in those days was irreplaceable. She was usually 12 to 16 feet tall.

Used this term in the old days and in Russia, it was first introduced into the lexicon during the reign of Peter I. It was equal to 12 inches.

In that era, when the active development of Russian shipbuilding was just beginning, it became necessary to solve the problem associated with the Russian measure and the English one. All the discrepancy was successfully resolved: the arshin recognized at that time was 28 inches, fathoms - 7 feet.

In Russia, they adhered to the decimal system of measurements, but the British found it more convenient to use the number 12, since their navigators were engaged in trade, sailing around the world.

And taking the number "12" as a basis, it was much more convenient for them to conduct financial and trade operations, to conclude transactions. When bringing goods to Russia, or purchasing them there, sales representatives used local measures of length.

Foot serves Russian aviation

This is an off-system unit, that is, it does not exist in the International System of Units (SI). However, in the Russian Federation it is actively used, primarily to determine aviation navigation, in order to:

• determine the flight altitude of the aircraft;
• find out the speed of its rise;
• calculate the decline.

In 2009, a government decree was issued stating that the word foot is a unit of measurement. The bar (') is used to indicate in writing.

Features of the size

Before Europeans began to use the metric system, this unit of measurement was counted as 12 inches, one inch equated to the height of the thumb.

But calculating the given length, especially if the distance was large, given the length of the foot, it was both easier and more convenient. These standards were used in the distant past. Scientists suggest that in the beginning the Egyptians used this method, and the ancient Greeks and Romans adopted their method. Since the Roman legionnaires wore special sandals, they did not take off their shoes if it was necessary to measure the length or distance.

Foot is a word of English origin. The Russian translation sounds like "foot" or "foot", and the British version is the sandals worn by legionnaires.

Undoubtedly, each person has individual sizes of body parts, and feet differ significantly in size. Therefore, at the beginning this word did not have a clearly marked number.

New units of measurement have sometimes appeared due to such differences. History has recorded a case when King Edgar, the ruler of Britain, decided to introduce a new unit, taking into account the parameters of his own body: starting from the nose and ending with the tip of the middle finger of an outstretched hand.

As a result, a yard appeared, and since the human body is harmonious and proportional, one yard was three feet. All the decrees of the ruler were required to be strictly executed, therefore the whole country was forced to use just such a unit of measurement for calculations.

But after the death of King Edgar, his body proportions no longer played a dominant role, so everything had to be calculated differently, adjusting to the next ruler.

At one time, the next king of England - Henry I, son of William the Conqueror - solved this issue simply: he issued a decree, commanding that his foot should be taken as a measure of length. Such parameters managed to hold out for many centuries, until a convenient metric system appeared, which was adopted by many states - it was so convenient to conduct trade transactions, conclude agreements with international partners.

The British did not immediately accept this system, but over time they unified the foot.

How many meters in 1 foot

Foot exists not only in England, but its exact linear meaning differs in other countries. To clarify this issue, a conference was convened in 1958, which brought together participants from English-speaking countries. After much debate, they unified their statutory units of length, and a clear figure for the foot was determined - 0.3048 meters.

If you urgently need to convert feet to meters, the data will help:

1 square foot equals 0.0929 meters.

1 square meter equals 10.763910 square feet.

Futa has a very long and interesting history that goes back millennia. It is surprising that now he also takes part in various calculations, he is also referred to and used even in scientific circles, believing that he is very convenient.

An example of another problem with feet is in the next video.

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

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

How did the foot get its name?

If you studied English at school or college, you know that the word foot is translated from English as a 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 has a different foot length? The fact is that many years ago there were no precise measures for measuring length, so people used the proportions of their own bodies. Of course, this is not the most accurate measurement, but it suited everyone 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 the appearance of the foot

The unit of measurement called the foot was actively used in English-speaking countries as early as 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 Russia, feet were also used, but they appeared during the reign of Peter I and equated one foot to 12 inches. Also in those years, shipbuilding was actively developing in Russia, so it was necessary to somehow connect Russian measures of length with English ones. Everything was resolved quite simply: 1 fathom was equal to 7 feet.

In Europe, the foot was usually counted as the length of 12 toes, and even earlier the length of the foot was used. In general, a 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 according to a 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 in Russia, meters, but in our country, feet are also common in certain areas. A non-systematic unit of measurement is used in the Russian Federation in aviation for:

• determination of flight altitude;
• calculating the rate of descent;
• determining the rate of rise of the aircraft.

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 - ‘. It is not difficult for pilots to convert feet to meters, and in most cases this is not necessary at all.

How many meters are there 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 consider a table that simplifies the conversion of 1, 10, 25, 50 feet to meters and vice versa, so you will figure it out.

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

• one square meter equals 10.76 sq. feet;
• in each square foot 0.093 sq. m.

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

Also, for completeness, we propose to 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:

An inch (from the Dutch. Duim - thumb) is a unit of measure for distance, the exact linear value of which differs from country to country. Usually, an inch is understood as the so-called "international" or "English" inch, which since 1958 has been tied to the SI metric system.

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

In the English system of measures, 1 inch = 1/12 foot = 1/36 yard.

Thus, at present, inches and feet are understood as follows:

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

Designation

In modern Russian, there is no generally accepted abbreviation for inches. Before the transition to the metric system, the abbreviation "dm" was used, but now decimeters are denoted that way. Most often, the English designation is copied: the same double prime as in the designation of arc seconds, placed without a space behind the 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 abbreviation for feet, as well as inches. Most often, the English notation is copied: a foot is designated as a single stroke, as in the designation of arc minutes, 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 , sole).

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. A "legal" inch called an inch was approved by King Edward II in 1324 as the length of three grains of barley taken from the middle of a spike and pressed against one another at their ends. In English everyday life, the measure "barley grain" is used, equal to one third of an inch. It is important to note here that it is correct to denote inches with whole numbers and commons, not decimal fractions.

Later, in the 16th century, the "legal" English foot also appeared. It was defined as 1/16 of the total length of the left feet of sixteen people leaving Matins on Sunday. With the help of this very ingenious and far-sighted technical solution for its time, it was always possible to relatively accurately determine the foot, since the feet of sixteen randomly selected people from all those who gathered on Sunday for prayer, the feet, naturally, were of 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 the geometric, that is, especially accurate (geometry was called all mathematics for many years) foot as the total width of sixty-four grains of barley. This dramatically improved the fidelity of the foot value.

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1 meter [m] = 3.28083333333333 ft (US Survey)

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 maritime league (MU) nautical league (international) mile (statutory international) mile. (international) mile (statutory) mile (US geodetic) mile (roman) 1000 yards furlong furlong (US geodesic) chain chain (US geodetic) rope genus genus (US geodesic) pepper pol pole) fathom, fathom veil (US geodesic) elbow yard foot foot (US geodesic) link link (US geodesic) elbow (UK) hand span finger nail inch (US geodesic) barley grain (eng. barleycorn) thousandth microinch angstrom atomic length unit x-unit fermi arpan soldering typographic point twip elbow (swedish) fathom (swedish) caliber centiinch ken arshin actus (dr. Rome) vara de tarea vara conu quera vara castellana elbow (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 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 Earth to the Moon cable (international) cable (British) cable (US) nautical mile (USA) light minute rack unit horizontal step cicero pixel line inch (Russian) inches span foot fathom oblique fathom verst boundary verst

Feet and inches to meters and back converter

foot inch

m

More about length and distance

General information

Length is the longest measurement of the body. In 3D space, length is usually measured horizontally.

Distance is a measure of how far two bodies are from each other.

Distance and length measurement

Distance and length units

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

Distance in physics and biology

In biology and physics, lengths are often measured much less than one millimeter. For this, a special value is adopted, a 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. The 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 / (60 × 180) meridian. This made it easier to calculate latitude, since 60 nautical miles equals one degree of latitude. When distance is measured in nautical miles, speed is often measured in nautical knots. One nautical knot equals the speed of one nautical mile per hour.

Distance in astronomy

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

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

Light year is 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 value is used in popular science literature more often than in physics and astronomy.

Parsec is 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, at an angle of one arc second. One arc second is 1/3600 of a degree, or approximately 4.8481368 mrad in radians. Parsec can be calculated using parallax - the effect of a visible change in body position, depending on the point of view. During measurements, a segment E1A2 (in the illustration) is laid 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 a 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 postpone a segment through point S, perpendicular to E1E2, it will pass through the point of intersection 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 arc seconds.

On the image:

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

Other units

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

Elbow- the old 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 British imperial measures 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 the fabric and length of swimming pools and sports fields and fields such as golf and football.

Definition of meter

The definition of the meter has changed several times. Initially, the meter was 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 of the orange line of the electromagnetic spectrum of the krypton atom ⁸⁶Kr in vacuum, multiplied by 1,650,763.73. Today, the meter is defined as the distance traveled by light in a vacuum in 1/299 792 458 seconds.

Calculations

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 the unitconversion.org functions.

An inch (from the Dutch. Duim - thumb) is a unit of measure for distance, the exact linear value of which differs from country to country. Usually, an inch is understood as the so-called "international" or "English" inch, which since 1958 has been tied to the SI metric system.

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

In the English system of measures, 1 inch = 1/12 foot = 1/36 yard.

Thus, at present, inches and feet are understood as follows:

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

Designation

In modern Russian, there is no generally accepted abbreviation for inches. Before the transition to the metric system, the abbreviation "dm" was used, but now decimeters are denoted that way. Most often, the English designation is copied: the same double prime as in the designation of angular seconds, placed without a space after the numerical value, for example: 3 ″ (3 inches). In English-speaking countries, the abbreviation "in" (from the English inch - inch) is also used.

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

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. A "legal" inch called an inch was approved by King Edward II in 1324 as the length of three grains of barley taken from the middle of a spike and pressed against one another at their ends. In English everyday life, the measure "barley grain" is used, equal to one third of an inch. It is important to note here that it is correct to denote inches with whole numbers and commons, not decimal fractions.

Later, in the 16th century, the "legal" English foot also appeared. It was defined as 1/16 of the total length of the left feet of sixteen people leaving Matins on Sunday. With the help of this very ingenious and far-sighted technical solution for its time, it was always possible to relatively accurately determine the foot, since the feet of sixteen randomly selected people from all those who gathered on Sunday for prayer, the feet, naturally, were of 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 the geometric, that is, especially accurate (geometry was called all mathematics for many years) foot as the total width of sixty-four grains of barley. This dramatically improved the fidelity of the foot value.

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

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

Feet and inches to centimeters conversion table

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

What is "leg"

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

In Russia, the legs are used at SI stations in aviation. Foot (ft, ft, ’) from the English word foot-foot. This is an imperial unit of measure. It was merged in 1958, this time with an "international" consequence of 0.3048 m.

In addition to the international leg, which is 30.48 cm, there is Amsterdam (11 inches), Britain, Baden, Warsaw, Danube, Greece, etc. In Russia, 1/7 legs were full.

What is "centimeter"

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

What is a thumb and a foot? How many meters are in meters? 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.

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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 legs and inches, see HERE.