Millimeters to centimeters online calculator. How to convert centimeters to millimeters: methods. Problems with modern unit systems
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1 millimeter [mm] = 0.1 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 the longest 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 quantities such as kilometer (1000 meters) and centimeter (1/100 meter) are also widely used in 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 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 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 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:
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Calculations for converting units in the converter " Length and distance converter" are performed using unitconversion.org functions.
How to convert centimeters to millimeters? Every schoolchild has faced this question. Or maybe a person who left his desk a long time ago, but is not good at mathematics and doubts whether he remembers everything correctly. Or parents who are looking for the easiest way to explain this topic to their child. To dispel all doubts, let's figure out how to convert centimeters to millimeters.
Method one
This method is suitable for schoolchildren or will become good advice parents of students. All you need to figure out how to convert centimeters to millimeters and vice versa is a ruler. Required good tool with clear markings. Very often it’s a good idea to support an explanation with a visual example.
Therefore, it is worth taking a ruler and seeing where one centimeter is marked on it. After this, find the division marking one millimeter. Compare how much they differ. You can then calculate how many divisions indicating millimeters fit in one centimeter. The answer, obviously, will be 10. That is, one centimeter will be equal to ten millimeters, and vice versa. In the same way, you can consider two and three centimeters, and draw certain conclusions about how to convert centimeters to millimeters.
Other measurement method
This method is suitable for those who have already figured out how measurements change and why as many as 10 millimeters fit in one centimeter. The answer to the question of how to convert centimeters to millimeters will be simple: you need to learn the ratio of these quantities.
One centimeter is equal to ten millimeters. Therefore, to find out how many millimeters are in two centimeters, you need to multiply ten by two. To find out how many millimeters are in five centimeters, you need to multiply ten by five.
Millimeters are converted to centimeters using division. If there are sixty millimeters, then they need to be divided by ten (that’s how many millimeters are in one centimeter). Accordingly, it turns out to be six. In other words, sixty millimeters are six centimeters. Solution simple tasks- converting one measurement to another - will help you remember how to convert centimeters to millimeters.
