- (from Latin mille passuum a thousand double Roman steps of "canes") a travel measure for measuring distance, introduced in Rome. The mile was used in a number of countries in antiquity, as well as in many modern countries before the introduction of the metric ... ... Wikipedia

- (French mille, German Meile). A travel measure in Europe, which has a different value, in Russia = 7 versts. Dictionary of foreign words included in the Russian language. Chudinov A.N., 1910. A MILE is a measure of length, of various sizes: German geographical = ... ... Dictionary of foreign words of the Russian language

- (English mile) a unit of length that was widespread in national non-metric systems of units and is now used mainly in maritime affairs. 1 mile (nautical) = 1.852 km; in the UK 1 mile (nautical) \u003d 1.853 km, 1 land mile ... ... Big Encyclopedic Dictionary

MILYA, and, wives. A measure of length that varies from country to country. Sea m. (1852 or 1853 m). Land m. (1609 m). Old Russian m. (7468 m). Explanatory dictionary of Ozhegov. S.I. Ozhegov, N.Yu. Shvedova. 1949 1992 ... Explanatory dictionary of Ozhegov

AND; and. [English] mile] 1. A unit of length, measuring distances, used in maritime affairs. The ship was moving at eight miles an hour. Sea m. (distance 1,853 kilometers). 2. Unit of length, distance measurements, different in different ... ... encyclopedic Dictionary

mile- and, genus. pl. miles, w. A measure of length used primarily in maritime affairs. Swim a few miles. Etymology: From English mile (← Latin milia passuum ‘thousand double Roman steps’). Encyclopedic commentary: Sea mile ... ... Popular dictionary of the Russian language

- (English mile, from Latin milia passuum a thousand double Roman steps) a unit of length that was widespread in national non-metric systems of units and is now used mainly in maritime affairs. In the USSR and most countries ... ... Great Soviet Encyclopedia

- (English mile), a unit of length that was widespread in the national. iemetric systems of units and the currently used Ch. arr. into the sea deed. 1 M. (sea) \u003d 1.852 km; in the UK 1 M. (sea) \u003d 1.853 km, 1 M. land (authorized) \u003d 1.609 km ... ... Natural science. encyclopedic Dictionary

mile- and; and. (English mile) 1) A unit of length, measuring distances, used in maritime affairs. The ship was moving at eight miles an hour. Nautical mile. (distance of 1,853 kilometers) 2) Unit of length, measuring distances, different in different ... ... Dictionary of many expressions

Nautical mile- an off-system unit of length used in maritime affairs. In 1928, the International Hydrographic Bureau adopted the standard M.m.: 1 m.m. = 1.852 km = 10 kb (cable) (in the UK 1 nm = 1.853 km). Land mile = 1.609 km… … Border Dictionary

Asia- (Asia) Description of Asia, countries, states of Asia, history and peoples of Asia Information about Asian states, history and peoples of Asia, cities and geography of Asia Contents Asia is the largest part of the world, forms Eurasia together with the mainland ... Encyclopedia of the investor

Or adventures, in films about desperate sailors, in articles on a geographical theme and in conversation between sailors, the term “nautical mile” often slips. It's time to figure out what the length in shipping is, and why sailors do not use the kilometers we are used to.

What is 1 nautical mile equal to?

Initially, this value corresponded to the length of 1/60 degree of the arc of a circle on the surface of the Earth with a center coinciding with the center of the planet. In other words, if we consider any meridian, then a nautical mile will be approximately equal to the length of one minute of latitude. Since it is somewhat different from the outlines of an ideal ball, the length of 1 minute of a degree of the considered meridian may differ slightly depending on latitude. This distance is greatest at the poles - 1861.6 m, and least of all at the equator - 1842.9 m. To avoid confusion, it was proposed to unify the length of the nautical mile. The length of 1 minute of a degree at 45º of latitude (1852.2 m) was taken as the basis. This definition has led to the fact that the nautical mile has become convenient for calculating navigational tasks. For example, if it is necessary to measure a distance of 20 miles on a map, then for this it will be enough to measure 20 arc minutes with a compass on any meridian plotted on the map.

Beginning in 1954, the international nautical mile (1852 m) was used in the United States. In practice, it is often rounded up to 1800 meters. The official designation of this unit was never adopted. Sometimes the abbreviation "nmi", "nm" or "NM" is encountered. By the way, "nm" is the generally accepted designation of the nanometer. 1/10 international nautical mile = 1 cable = 185.2 meters. And 3 miles equals 1 nautical league. In the UK, their own nautical mile, equal to 1853.184 m, was often used before. In 1929, an international conference was held in Monaco on various issues of hydrography, at which the length of the nautical mile was determined at 1852.00 meters. Do not forget that a mile is not only sea, but also land. In this case, its length is 1.151 times less than the sea.

What is the relationship between a nautical mile and a knot?

The nautical mile, or, as it is sometimes called, geographical or navigational, has become widespread in geography, aviation and navigation. Closely related to it is the concept of the sea knot, which is used in shipping as the basic unit of speed. One knot is equal to one mile traveled per hour of the vessel's movement. The name "knot" is due to the fact that in the old days a lag was used on ships to measure speed. It was a log or a board in the shape of a triangle, to which the load was tied. A line (rope) was tied to this, on which knots were tied after a certain distance. The log was thrown overboard, after which, for a selected period of time (from 15 seconds to 1 minute), it was calculated how many knots would go into the water.

There are different versions regarding the distance between nodes. Some believe that it was 25 feet, and if one knot left in 15 seconds, then one nautical mile (100 feet / min) was obtained as a result. According to the second version, the knots were tied after 47 feet and 3 inches (14.4018 m), and the countdown was 28 seconds. In this case, one knot showed a speed of 101.25 fpm.

We hope that now you will not have difficulty in understanding marine terminology, and miles with knots will become as clear as familiar kilometers.

More than two hundred years ago, France passed the Law on the metric system of measures, which has been used by most of the world since then. We are talking about the meter and the gram. Prior to that, each country had its own ways of measuring distance and mass, for example, arshin and sazhen among the Slavs. Now it seems to us that such measures are terribly inconvenient, everyone is used to the fact that in any country the same measures of measurement. But in countries such as Myanmar, Liberia and the United States, they do not use the generally accepted metric system.

The measurement of distance, for example, is still done in terms of miles, and the question of how many kilometers in a mile or how many centimeters in an inch is often of interest to the domestic consumer of foreign, namely American products.

The history of the concept of "mile"

This is a measure used in a number of countries of antiquity, and its name comes from the Latin mille passuum - the so-called distance of a thousand double steps that Roman soldiers take on the march, fully dressed in armor of that time. But there is no single system for converting miles into kilometers. This is due to the fact that back in the 18th century in Europe there were about ... fifty different miles. The smallest mile, compared to a kilometer, is the Egyptian one, equal to 580 meters. And the maximum value is the old Norwegian mile, equal to 11.3 kilometers.

Mile in different countries

The French had at least two miles - land and sea, and their dimensions were displayed as part of the length of the arc of the earth's meridian. How many kilometers in a land mile, calculated from 1/25 ° of the earth meridian, and this is 4444.4 meters, that is, almost 4.5 kilometers, similarly to a nautical mile, 1/20 ° of the earth meridian, and this is 5.555 km.

Milliatrius, she is the ancient Roman mile, equals 1.482 km. The old Russian mile was equal to seven versts, and now it is almost 7.5 kilometers, about the same value - 7420 meters is the German one mile. How many kilometers the Swedes and Norwegians equate to one mile is 10.668 km and 11.298 km respectively. True, after the adoption of the law on metric measures, both countries equated a mile to exactly ten kilometers.

Why the US does not adopt the metric system

Why is a highly developed country still using the old system of numbers? This question is connected with many nuances. The transition was attempted many times, but was hampered by various historical events and the financial costs required for such an undertaking. For example, having gained independence in 1776, the United States wanted to bring order to the system of measuring quantities. But it turned out that this would require sending a delegation to France. At that time, such a trip would have been very expensive, and the case was postponed indefinitely. When the American Civil War ended (1865), most European countries had already switched to the metric system, and this fact could no longer be ignored. In 1866, an act was signed declaring the metric system official for lawsuits, contracts and transactions. That is, for almost 150 years the United States should have used the metric system accepted by the whole world. In fact, the situation is as follows: in the United States, the use of the metric system is “recommended”. It is not mandatory, because only 30% of the products are "metrified". This applies to pharmaceuticals, where only the metric system is used, but otherwise they can indicate data for two systems.

How many kilometers in a mile are there now

Now there is a concept of two miles - sea and land. The nautical mile is equal to 1862 meters, the American land mile is equal to 1.609344 kilometers. To calculate how many kilometers in a mile, for an approximate value, simply multiply the number in miles by 1.6. So, a car speed of 40 miles per hour would be approximately equal to the metric 65 kilometers per hour.

A mile is a unit of measure for distance dating back to ancient Rome. Translated from Latin, it means 1,000 steps. The military - the Romans, walking along the roads of the empire, measured the distance with double steps. Initially, the Roman mile corresponded to 1475 meters. This measure was used in many countries in antiquity. However, with the introduction of the metric system of measures, known as the SI, its use has been greatly reduced. One way or another, today in some countries this travel measure of length is still used. It should be noted that the length of a mile varies greatly in different parts of the world from 0.58 km to 11.3 km. Moreover, back in the 18th century in Europe, there were about 46 units of measurement, which were called miles.

To date, several types of miles are found in everyday life in different areas. Speaking about the most popular of them, we can name:

• Land miles
• Nautical miles

Let's consider each of them in more detail.

Nautical miles

A nautical mile is a unit of measure for the distance traveled by a ship between destinations. This measure is widely used in navigation as well as in aviation. In fact, this is the average length of the arc of one arc minute of the meridian. Gerard Mercator, a Flemish cartographer and geographer, suggested using this measure. In Russia, the nautical mile has been used since the time of Peter the Great. And today, when seafarers are offered to move to kilometers, they answer that they do not plan to do this. However, it is justified. After all, a nautical mile is, in fact, a path corresponding to the distance between two geographical coordinates in one minute of latitude.

How many kilometers are in a mile? Here are the formulas for converting miles to kilometers and vice versa.

Nautical mile to kilometers conversion formula

1 nautical mile = 1,852 meters = 1.852 kilometers

Derive the formula for converting a kilometer to a nautical mile

1 nautical mile = 1.852 kilometers
1,000 nautical miles = 1,852 kilometers
1 kilometer = 1000/1852 miles (approximately equal to) 0.54 miles

Formula to convert kilometers to nautical miles

1 kilometer = 1000 / 1852 miles? 0.54 miles

Land miles

The land mile is used primarily in English-speaking countries, and corresponds to a value equal to 1,609 meters. The statute mile is used in the United States and is sometimes referred to as the American mile for this reason. Accordingly, if you want to know: how many kilometers are in a US mile or, which is the same, how many km are in a US mile, then the above value should be used. Also, this unit can be found under the names British or statute mile.

Formula to convert statute miles to kilometers

1 statute mile = 1,609 meters = 1.609 kilometers

Kilometer to statute mile conversion formula

1 km = 1000/1609 statute miles = 0.6215 statute miles

In addition to those described, there are also:

• geographical or German mile equal to 7,420 meters (7.42 km);
• an old Russian mile equal to 7,467.6 meters (7.4676 km).

1 mile is how many kilometers in Russia?

I would also like to note that in Russia this measure of length is not used, because there is nothing to measure in these units of measurement in the Russian Federation. Sailors have worldwide nautical miles (see above).

Often there is a need, for example, when solving a problem to find out: how many miles are in a kilometer or vice versa? Here it is worth clarifying which mile (land or sea) you need to transfer. Or maybe an old Russian mile or a German one? And already depending on this, you can translate this value into the usual kilometers. Let's consider several problems of converting miles to kilometers and vice versa. For definiteness, we clarify that to solve problems we will convert nautical miles into kilometers (1 nautical mile \u003d 1.852 kilometers).

Convert miles to km

Challenge #1: 1 mile - how many km? Solution: Using the above formula, we get: 1 * 1.852 = 1.852 km. Answer: There are 1.852 kilometers in one mile.	Problem #5: How many kilometers are there in 10 miles? Solution: 10 * 1.852 = 18.52 kilometers. Answer: There are 18.52 kilometers in 10 miles.
Challenge #2: 2 miles - how many km? Solution: Using the formula above, we get: 2 * 1.852 = 3.704 kilometers. Answer: There are 3.704 kilometers in 2 miles.	Problem #6: How many miles is 5 miles? Solution: 5 * 1.852 = 9.26 meters. Answer: There are 9.26 kilometers in 5 km.
Problem #3: A thousand miles - how many kilometers? Solution: 3 * 1.852 = 5.556 kilometers. Answer: There are 5.556 kilometers in 3 miles.	Problem #8: How many kilometers will be in 200 miles? Solution: 200 * 1.852 = 370.4 kilometers. Answer: There are 304.4 kilometers in 200 miles.
Problem #4: 6 miles - how many km? Solution: 6 * 1.852 = 11.112 kilometers. Answer: There are 11.112 kilometers in 6 miles.	Problem #9: Convert 36 miles to km. Solution: 36 * 1.852 = 66.672 kilometers. Answer: 36 miles is 66.672 kilometers.

How many miles are in N kilometers?

Consider inverse problems of finding the number of kilometers in a mile? And we will convert kilometers to statute miles (1 km = 0.6215 miles).

Miles to kilometers convert online

We offer you to use our calculator for converting miles to kilometers online.

Back in the days of the ancient Romans, one land mile was equal to 1000 steps. Later, a specific figure was set - 1609 meters. The length of a nautical mile was 1852 meters. Where did this one come from?

A bit of history...

It was inconvenient for sailors to use statute miles to measure the speed of a ship. Especially, there were unjustified risks during emergency work. From the raging elements during the storm, the life of sailors was in great danger. Under such conditions, it was not possible to use land measurements.

Therefore, we found a more suitable option. They took a heavy log and threw it overboard. Then they counted how many knots will pass through the sailor's hands for a certain period of time before the rope is pulled.

Empirically determined the distance between the nodes and the time interval. There are different versions about the exact definition. One of them, when the distance between the nodes averaged 15 meters. It took 30 seconds in time.

It was practical and rational. The countdown was measured with an hourglass. All that remained was to count the knots and look at the sand. The task could be performed even by an illiterate sailor.

We summed up these studies and found out. The length from one knot to another to the tension of the rope is 15 meters, in time it takes 30 seconds. By simple arithmetic operations, the average speed of the ship was calculated. Thus, one nautical mile was 1852 meters in one hour.

Further developments

With the development of navigation, even greater convenience was introduced. One nautical mile became equal to one minute along the meridian. 1 degree equals 60 minutes. This will be 60 nautical miles. The nautical mile has become convenient for calculating navigation tasks.

Therefore, the navigators began to measure the distance with a compass. By attaching it to the scale, they recognized the distance in nautical miles. For example, to find out a distance of 30 miles, 30 minutes of arc on any meridian marked on the map is enough with a compass.

Now, of course, all equipment is computerized. There is no need to use outdated methods, but the nautical mile, as a unit of distance, has remained unchanged and amounted to 1852 meters. It is called navigational or geographic.

The knot is used in shipping as the basic unit of speed. Nautical miles and knots are the same clear and familiar measurements at sea as kilometers and meters on land.

Sources:

• Units. What is the SI system?
• Why are nautical miles different from land miles, while nautical and land kilometers are the same?
• Why is a nautical mile different from a land mile?
• What is a nautical mile and what is the sea knot?

Speed ​​on land is measured in units of time taken to travel one kilometer - kilometers per hour. On the water, speed is measured in knots - special units that are characteristic only for navigation.

According to encyclopedic dictionaries, a knot is a measure of length equal to 1 nautical or 1852 meters. Thus, a ship moving at a speed of one mile per hour, or 1 knot per hour, covers a distance of one kilometer and 852 meters in one hour. What is the reason for such, at first glance, strange features of taking measurements in shipping and?

Node Birth

What does nautical mile mean?

Nautical mile - approximately two kilometers, or rather, 1852 meters. The Great Soviet Encyclopedia mentions that this value was approved in 1929 at the International Hydrographic Conference. It is considered correct in the CIS countries and a number of other states, although it is not included in the list of the international system of units.

Where did the meaning come from? It is known that the distance of 1853 meters is the approximate linear length of one minute of latitude, that is, 1/60 of the meridian arc. It should be noted that this length of the meridian corresponds only to the average latitudes of the globe. We add that a nautical mile contains 10 cables.

The value of the nautical mile in the UK was slightly different, where until 1929 it was assumed that 1853 meters. This was due to the convenience of converting an ordinary mile into a nautical mile. In this case, it was enough to add the number 800 to the mile to get the nautical mile in feet.

What does sea knot mean?

The sea node displays a certain speed of the vessel. A ship that has traveled one nautical mile per hour has made one nautical knot. The number of nautical miles a ship travels in one hour is equal to the number of knots. Moreover, it is not customary to talk about the speed of the vessel, as the number of knots per hour. If it is indicated that the ship makes twelve knots, it means that it overcomes the same number of miles in sixty minutes.

Why did the maritime knot get its name? It turns out that this concept is associated with a marine instrument that previously measured the speed of a vessel - a lag. The lag was a long load that was thrown overboard. The rope was pre-knotted in 50-foot increments. After that, the captain or his assistant counted the number of knots on the cable that would sink into the water in a certain time. Their number corresponded to the speed of the vessel.

Nowadays, the speed of a ship in knots is rarely measured, only in Britain it is customary to talk about nautical per hour. In most countries, maritime transport speed is measured in kilometers per hour.

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Mileage Rules

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