Length conversion table

 Table of Contents:

• Length conversion table
• Length conversion chart
• Inch definition
• Feet definition
• Meter definition
• Imperial US measurement system. US measurement system
• Metric measurement system

A length converter is an instrument that permits rapid exchange of length measurements that use imperial and imperial and. But not only that. It's equipped with 20 measurements of length:

• Anstrom (A)
• Picometers (pm)
• Nanometers (nm)
• Micrometers (mm)
• millimeters (mm)
• centimeters (cm)
• decimeters (dm)
• meters (m)
• centimeters, meters and meters
• kilometers (km)

• 1,000ths of an inch (mil / thou)
• inches (in)
• feet (ft)
• inches and feet
• yards (yd)
• miles (mi)

• nautical miles (nmi)
• Sun radii (R)
• lights years (ly)
• Units of Astronomy (au)
• parsecs (pc)

It is an length conversion calculator operates by entering unit numbers (up at 11 for the calculation) in the calculator. It then calculates the length converter then returns your results for each unit in real-time. Choose the unit you prefer if are looking to do the length conversion to a different one to the ones which are the default units from The Omni team. If you're interested in converting to different sizes of area Another option is to use the

Length conversion table

For more information on what conversion factors are for the nine most commonly used length units, take a look at the table on length conversion:

millimeter (mm)	centimeter (cm)	meter (m)	kilometer (km)	inch (in)	feet or foot (ft)	yard (yd)	mile (mi)	The nautical mile (nmi)
1 millimeter (mm)	1	0.1	0.001	0.000001	0.03937	0.003281	0.0010936	0.0000006214	0.00000054
One centimeter (cm)	10	1	0.01	0.00001	0.3937	0.03281	0.010936	0.000006214	0.0000054
1 meter (m)	1000	100	1	0.001	39.37	3.281	1.0936	0.0006214	0.00054
1 kilometer (km)	1000000	100000	1000	1	39370	3281	1093.6	0.6214	0.54
1 " (in)	25.4	2.54	0.0254	0.0000254	1	0.08333	0.02778	0.000015783	0.000013715
1 foot = feet (ft)	304.8	30.48	0.3048	0.0003048	12	1	0.33333	0.0001894	0.00016458
1 yard (yd)	914.4	91.44	0.9144	0.0009144	36	3	1	0.0005682	0.0004937
1 mile (mi)	1609344	160934	1609.3	1.6093	63360	5280	1760	1	0.869
1.25 nautical miles (nmi)	1852000	185200	1852	1.852	72913	6076	2025.4	1.1508	1

We've decided to round off a some of the conversion variables so that they can fit into this table. Thus, certain values are not exact however they do have some degree of accuracy.

Length conversion chart

In case you're struggling to determine how you can quickly change between units within one system, take a look at these two simple length conversion charts:

1. The system of measuring metric

For example:

• 6 km = 6 * 1000 = 6000 m
• 180 cm = 180 / 100 = 1.8 m

1. Imperial US measure system. US measure system

For instance:

• 5 yd = 5 * 3 = 15 ft
• 144 in = 144 / 12 = 12 ft

We've also decided to compile a list of the most popular length conversions. The most commonly used ones you'll find are:

1. meters to feet / feet-to-meters

In case you're trying determine how many feet is in a meter, here you are:

• 1 Meter 3.281 feet which is equal to 3 inches, or 3 inches.
• 1 foot equals 0.3048 Meter

1. cm to inches/ inches to cm

Find out the amount of centimeters in an inch.

• One centimeter 0.3937 inches
• 1 inch equals 2.54 centimeters

1. feet-to-inchesin inches

To convert between feet and inches use:

• 1 foot = 12 inches
• One in 0.08333 feet 1/12 of one foot

1. yards to feetor yards to feet

How many feet of space can be squeezed into the yard? Three!

• 1 yard = 3 feet
• 1 foot 0.3333 yards, 1/3 of one yard

1. feet to miles / miles to miles

Have you ever wondered how many feet are in one mile?

• 1 foot 0.00018939 mile
• 1 yard = 5280 feet

Inch definition

The inch (abbreviate for "as in or ") is a measurement of length used in the Imperial or the US metric system. The term is derived from a variety of definitions, including the size of the thumb. In various dialects e.g. Norwegian, Afrikaans, Italian or French the word "inch" is derived from the word thumb at times, it's the same concept. Since the 14th century onwards the definition of an inch was given as by the King of England to be three grain of barley, dry and round, laid out between the ends in a lengthwise. Inch definition varied through the centuries, but in the 1950's an international standard was established, and since then, an inch is equivalent to 2.54 centimeters.

1 in = 2.54 cm

One inch also corresponds one-third of one yard. 1/12 of one foot or 1/63360 of one mile.

In a day-to-day basis, inches are widely used within all of the US, UK, Canada and many other nations that were previously as members of the British Empire. Along with the fact that length, width and width can be measured in in the same way, as are various sizes measured in units that are which are derived from inches (e.g. shoes size).

What is measured in inches, not just in the US however, but around the globe?

• screen dimensions of monitors, smartphones televisions, (specifically dimensions of the diagonals in rectangular screens)
• resolution for the display PPI (pixels per inch)
• dimensions of tires (e.g. car or bike wheels) e.g. bicycle wheels or car tires,
• diverse tools and pipes of various sizes
• certain sports equipments use the value for inches. e.g. used in archery.
• in the field of science, e.g. Acoustics - microphones, and the dimensions of loudspeakers

One International inch is the same as:

• 10,000 10ths
• 1,000 thou/mil
• 100 points or Gries
• 72 PostScript points
• 6 computer picas
• 3 barleycorns
• 2.54 centimeters exactly
• 0.999998 US Survey inches
• 1/3 of 0.333 palms
• 1/4 and 0.25 hands
• 1/12 or 0.08333 feet
• 1/36 or 0.02777 yards

Feet definition

The word foot (abbreviate to ft or ') is one of the length units as part of the Imperial or US standard system of measuring. It's a measurement that is based on the human body as the name implies. The measurement has been standardized in the 50s , and since then it's equal to 0.3048 meters precisely:

1 ft = 0.3048 m = 304.8 mm

The use of feet been used since the beginning of time throughout different civilizations however, the length of the foot varied between these cultures. The foot was used, e.g. in:

• Ancient Rome: 1 foot = 11.6 inches (295.7 mm). This was a standard foot but in some provinces it could be as big in size as 13.2 inches (334 millimeters)
• Greece: 1 foot = 10.6-13.8 inches (270 - 350 millimeters)
• Indus cities during the Bronze Age: 1 foot equals 13.2 inches (333.5 millimeters)
• Egypt is the equivalent of 12 inches (304.8 millimeters)

The imperial public measure that is not official. standards, Greenwich

The foot measurement in England There was a change in the measurement for feet. England the foot measurement was also altered over the years and was first introduced in Roman standards, then later Belgic Celts foot of 13.2 inches or Welsh foot was introduced. It was it was removed. The feet definition varied from region to region, city to city, and finally the kings altered the measure according to their preferences. e.g., Henry I was said to have established an entirely new standard that was based on his arm. Then, Edward II of England introduced some kind of standardization, and introduced the statute foot which was 10/11 of the earlier foot. The finalization of the length of the foot was made much later in the year 1959 after an International yard-and-pound convention came into force. Since then, yard length between the United States and countries in the British Commonwealth is equal to exactly 0.9144 meters. In the beginning, when yard first defined in the first place, feet could be calculated as well. This is the equivalent of:

1 foot = (1/3) * yard = (1/3) * 0.9144 m = 0.3048 m

In the US two kinds of feet are utilized on a regular basis: the international foot, and the survey foot.

1. International footAlso called the standard foot, and was first standardized during the 50s. It is widely used in a range of fields, it's the equivalent to 0.3048 millimeters: One international foot 0.3048 m and we've utilized the symbol to show is the meaning of precisely this quantity. The measure used internationally is the equivalent of the human foot, which has the size of 13 (UK) and fourteen (US male).
2. Survey foot It is the US survey foot is nearly identical in size with the feet of the world. However, the word About is the primary . The survey foot definition is precisely 1200/3937 m. This is the key. 1 US survey foot = 1200/3937 m 0,30480060960121920243840487680975... m As you can see, it appears like a small amount of difference - something changes at the 7th decimal! This is the difference of just 0,609 mm 609 nanometers, when comparing the one foot type to the other. Why is this important? The reason is that the difference is minimal when measuring small objects, however , the difference is significant when we start measuring hundreds of thousands feet, such as when we map or employ an state-plane coordinate system (SPCS). In addition, the laws governing the survey foot varies across all 50 states.
   • 24 states have enacted legislation that states that measures for surveying should be built on US surveys foot. US Survey feet are the foot that is used for surveying.
   • 8 states have voted in favor of make the announcement in accordance with the world foot
   • 18 states do not have a specific percentage of the conversion for the units of metric measurement. However, don't worry too much If you're in need of conversion in your everyday conveyances or surveys of land. The difference is really negligible for shorter distances (less than one mile) and it doesn't matter what definition you settle on.
   There's another measurement of the foot, namely the Indian survey foot . It's described as precisely 0.3047996 m: 1. Indian survey foot = 0.3047996 m

Feet - as well as the whole imperial system is widely used in the US. In fact, it's almost exclusively used in the United States. The US is regarded as being the only nation that is industrialized in the world who hasn't recognized the International System of Units, commonly referred to as the system of measurement in the metric unit. Two other countries which use this measurement system are Liberia inside Africa in Africa in Africa and Myanmar (also called Burma) within Southeast Asia. Canadians together with the British employ a mixture of both systems: metric and imperial (e.g. the men's height will typically be expressed in feet , though inches are also used).

Feet aren't widely used in the non-English-speaking world. The most obvious example could be that of the measuring of the elevation of an airplane in the international travel industry.

Meter definition

Meter (British English: metre) is the basic length unit for a number of metrics, including those of the International System of Units (SI).

The definition of meter was changed in the course of how scientific methods of measuring changed. The definition now is which is direction taken by light in a vacuum that is within 1/992,458 seconds.

What was its definition by the time it was first defined?

• The first trials of the definition of the meter started in 1790. In 1790 it was decided by the French National Assembly decided that the length of a new meter would be equivalent to what is the size of the pendulum and an interval of one second for the half-period. Check out the accuracy of this figure by using our pendulum calculator. Enter 2 in the pendulum's period box and you'll then be able to calculate the length of the pendulum. In reality, it's very close to the one meter (0.993621 millimeters).

• In 1973 the circumference of Earth was chosen as a neutral reference point. The term "meter" was used to mean one-ten-millionth of the distance between the equator up to the north pole. North Pole: 1 meter is one tenth of the quarter meridional radius Earth that runs along the meridian between the Earth and Paris
• Between 1799 and 1889, and 1889, brass, platinum and the mixture of platinum and 10% iridium meter bars were developed, on an alloy that spanned the length of the meridian of Earth. It was the 1st General Conference on Weights and Measures in 1889, established meters as being the length which is measured between the two lines of a standard bar made from this kind of alloy. This International Prototype Meter is still kept in the International Bureau of Weights and Measures in Sevres near Paris. The meter definition was in use from 1960 until it was adopted by the 11th General Conference on Weights and Measures.
• From 1960 to 1983, the meters were changed in the year 1960. It was renamed as 1,650,763.73 wavelengths derived from the orange-red radiation Krypton86 under certain conditions.
• 17th Conference defined"meter" in the 17th Conference to mean 1/299,792,458 in the sense of how much light travels within a second. This definition of the meter has been in effect up to the present.

The table below summarizes the timeline of the meter definition (by Cardarelli, 2003).

Standard	Date	Absolute error	Relative uncertainty
1/10,000,000 is the number in the quadrant that extends along the Meridian	1795	500-100 mm	10 -4
First prototype of the platinum bar standard	1799	50-10 mm	10 -5
Platinum-iridium bar that has melting point of the frozen ice (1st CGPM)	1889	200-100 nm	10 -7
Platinum-iridium bars at the melting points of the ice, atmospheric pressure supported through two rollers (7th CGPM)	1927	n.a.	n.a.
Hyperfine atomic shift; 1650763.73 broad spectrum coming from the specific transition of Krypton-86 (11th CGPM)	1960	4 nm	4x10 -9
It is the length of pathway taken by light in a vacuum in the fraction of a second (17th CGPM)	1983	0.1 nm	10 -10

Imperial (US) measurement system. US measurement system

In the US, the Imperial US measurement system and as US measurement systems aren't the same, but for length measurements they're alike (they are different in volume measurements, meaning e.g. the cup may contain a quantity of floz that differs between the two measurement systems). The only countries that did not accept the metric system included those of the US, Liberia and Myanmar.

Six of the most commonly used US length units (also known as imperial length units) were included in our length converter:

• the thousandth part of an inch (mil / thou),
• Inches (in),
• feet (ft),
• feet and inches
• yards (yd),
• miles (mi).

There are two more length units, but we have excluded these from the length converter on purpose: The term "furlong" refers to the fact that the "furlong's conversion ratio isn't well-defined and the term league was the most used measurement used in Europe in Europe and Latin America but is no anymore an official unit across any region. However, you can find them below, along with the most frequently used values:

Unit	Comparatively to the previous	Feet	Millimeters	Meters
Thous (th)		1/12000	0.0254	0.0000254
inch (in)	1000 thou	1/12	25.4	0.0254
foot (ft)	12 inches	1	304.8	0.3048
yard (yd)	3 feet	3	914.4	0.9144
chain (ch)	22 yards	66	20116.8	20.1168
furlong (fur)	10 chains	660	201168	201.168
mile (mi)	8 furlongs	5280	1609344	1609.344
league (lea)	3 miles	15840	4828032	4828.032

Metric measurement system

The measurement system metric is also known as"the International System of Units (SI) uses an international decimal-based system for measurements and weights. It is widely used throughout the globe (apart of the three countries listed in the previous paragraphs) It is simple to use, rational and practical. The four units that comprise the metric measurement system are:

• meters ( m) for length,
• kg ( kg) for mass (check out this conversion of weight),
• Second ( s) for time,
• ampere (A) for electromagnetism.

Additionally, 22 derivative units that have their own names are also available. We can divide them into 5 categories:

1. Electromagnetism

• Volt is a measurement of electrical potential
• Ohm, a measurement of electrical resistance,
• tesla A measure of magnetic flux density,
• weber is a type of magnetic flux
• farad A type of capacitance electrical
• Henry is an expression used to describe electrical conductance
• Siemens can be described as a kind of electrical conductance,
• Coulomb is an expression that is used to describe an electrical charge.

1. Mechanics

• Watt A element of electrical or mechanical power,
• Newton A mechanical unit. force,
• Jourle is a type of mechanical, electrical or thermodynamic energy
• pascal, a unit of pressure.

1. Radiofrequency

• becquerel an element of radioactive decay,
• sievert is a term used to describe the absorption of the ionising radiation. You can estimate the radiation dose you experienced when you traveled to the airport by using the radiation calculation calculator on flights.
• gray an element of Ionizing radiation
• Lux is a term used to denote luminescent flux
• lumen is a term that describes the intensity of the light.

1. Circular arcs as well as Spherical surfaces

• The Radian is a kind of circular arc
• Sterandian Sterandian component of the spherical surface area.

1. Other

• degrees Celsius is a measurement in thermodynamics. It is a temperature measurement. You can utilize this temperature converter to convert degrees Celsius in Kelvins or Fahrenheit.
• katal is a component of catalytic action,
• hertz A unit that counts the number of times a second.