Chain. Conversion Chart / Distance and Length Converter, British Imperial Measure Before 1963

Chain. Conversion Chart

This converter features contemporary units of length. There is also a special converter for historical units of length you might want to visit for ancient, medieval and other old units that are no longer used.

Conversion settings:

Significant figures: ? Do you want rounded off figures or
scientifically precise ones?
For everyday conversions we recommend
choosing 3 or 4 significant digits.
Digit groups separator: ?
Choose how you want to have your
digit groups separated:
1234567.89 none
1 234 567.89 space
1,234,567.89 comma
1.234.567,89 point

1234567.89	none
1 234 567.89	space
1,234,567.89	comma
1.234.567,89	point

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This converter is very easy. Really.

1	This is a conversion chart for chain (British Imperial Measure before 1963). To switch the unit simply find the one you want on the page and click it. You can also go to the universal conversion page.
2	Enter the value you want to convert (chain). Then click the Convert Me button. Your value gets instantly converted to all other units on the page.
3	Now find the unit you want and get the conversion result next to it. It's your answer.
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Metric

chain to kilometer (km)
chain to meter (m)
chain to decimeter (dm)
chain to centimeter (cm)

chain to millimeter (mm)
chain to micrometre (micron)
chain to nanometer (nm)
chain to ångström

Units: kilometer (km) / meter (m) / decimeter (dm) / centimeter (cm) / millimeter (mm) / micrometre (micron) / nanometer (nm) / ångström

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The American System (US Customary Units) and British Imperial Measures

American weights and measures are based on units used in Britain prior to 1826, when imperial system was officially established. Until 1960-1963 American and British units of length were different in 2 parts per million. In the middle of 20th century it started causing problems and the governments of the two countries agreed to refine the measures to exactly match. Since then Great Britain and the United States were using the same measures of length. In the U.S. the old standard of foot was retained with the name US survey foot.

From 1995 the UK adopted metric units for general use. The only imperial measures of length that can be officially used now are miles, yards, feet and inches for road traffic signs.

chain to league
chain to mile (mi)
chain to land
chain to furlong
chain to bolt
chain to chain
chain to pole
chain to rod (rd)
chain to perch

chain to yard (yd)
chain to foot (ft)
chain to feet and inches (x'y")
chain to span
chain to hand
chain to inch (in)
chain to line
chain to mil
chain to microinch

Units: league / mile (mi) / land / furlong / bolt / chain / pole / rod (rd) / perch / yard (yd) / foot (ft) / feet and inches (x'y") / span / hand / inch (in) / line / mil / microinch

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British Imperial Measure before 1963

The first English official measurement standards were defined in 15th century. British system of units, known as imperial units, was established in 1824. The British Weights and Meausurements Act of 1824 repealed all existing British measures legislation and redefined existing units. The 1963 Weights and Measures Act standartized the international measures.

Units: league / mile (mi) / land / skein / bolt / shackle / furlong / / rope / pole / goad / ell / yard (yd) / pace / cubit (cu) / foot (ft) / span (sp) / nail / shaftment / hand (hd) / palm (plm) / inch (in) / finger / digit / barleycorn / poppyseed / line / button / caliber / thou (th) / mil

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US Surveyors' Measure

chain to furlong
chain to Ramsden's (engineers') chain (ch)
chain to Gunter's (surveyors') chain (ch)
chain to Gurley's chain (ch)
chain to Gunter's (surveyors') pole

chain to Gunter's (surveyors') yard
chain to Ramsden's (engineers') link
chain to Gunter's (surveyors') link
chain to Gurley's link
chain to Gunter's (surveyors') foot (ft)

Units: furlong / Ramsden's (engineers') chain (ch) / Gunter's (surveyors') chain (ch) / Gurley's chain (ch) / Gunter's (surveyors') pole / Gunter's (surveyors') yard / Ramsden's (engineers') link / Gunter's (surveyors') link / Gurley's link / Gunter's (surveyors') foot (ft)

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International Nautical Measure

The international nautical mile was defined by the First International Extraordinary Hydrographic Conference, Monaco in 1929. This is the only definition in widespread current use, and is the one accepted by the International Bureau of Weights and Measures. Before 1929 different countries had different definitions, and the Soviet Union, the United Kingdom and the United States did not immediately accept the international value.

chain to nautical league (naut.leag)
chain to nautical mile (naut.mi)

chain to cable length (cbl)
chain to fathom (fath)

Units: nautical league (naut.leag) / nautical mile (naut.mi) / cable length (cbl) / fathom (fath)

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US Nautical Measure

These measures were abandoned in favor of the international nautical measures in 1954.

chain to US nautical mile

chain to US cable length
chain to US fathom (fath)

Units: US nautical mile / US cable length / US fathom (fath)

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British (Imperial) Nautical Measure

These measures were abandoned in favor of the international nautical measures in 1970.

chain to Admiralty mile

chain to Admiralty cable length

Units: Admiralty mile / Admiralty cable length

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Spanish Customary Units Still In Use Today

These units are still actively used in some countries of Latin America. Their values vary from country to country. You can find more old Spanish customary units on our historical lengths page.

Units: cuadra of Argentina / cuadra of Bolivia / cuadra of Chile / cuadra of Colombia / cuadra of Ecuador / cuadra of Nicaragua / cuadra of Paraguay / cuadra of Uruguay / vara of Argentina / vara of Brazil / vara of Chile / vara of Colombia / vara of Costa Rica / vara of Cuba / vara of Dominican Republic / vara of Ecuador / vara of El Salvador / vara of Guatemala / vara of Honduras / vara of Mexico / vara of Nicaragua / vara of Panama / vara of Paraguay / vara of Peru (peruana) / vara of Peru (española) / vara of Uruguay / vara of São Tomé and Principe / vara of Venezuela

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Japanese

chain to ri (里)
chain to cho (町)
chain to jo (丈)
chain to hiro (尋)
chain to ken (間)

chain to shaku (尺)
chain to sun (寸)
chain to bu (分)
chain to rin (厘)
chain to mo (毛, 毫)

Units: ri (里) / cho (町) / jo (丈) / hiro (尋) / ken (間) / shaku (尺) / sun (寸) / bu (分) / rin (厘) / mo (毛, 毫)

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Chinese units of 1930

chain to li (市里)
chain to yin (引)
chain to zhang (市丈)
chain to chi (市尺)
chain to cun (市寸)

chain to fen (市分)
chain to li (釐 or 厘)
chain to hao (毫)
chain to si (丝)
chain to hu (忽)

Units: li (市里) / yin (引) / zhang (市丈) / chi (市尺) / cun (市寸) / fen (市分) / li (釐 or 厘) / hao (毫) / si (丝) / hu (忽)

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Chinese units of 1915

chain to li (里)
chain to yin (引)
chain to zhang (丈)
chain to bu (步)
chain to chi (尺)

chain to cun (寸)
chain to fen (分)
chain to li (釐 or 厘)
chain to hao (毫)
chain to si (丝)
chain to hu (忽)

Units: li (里) / yin (引) / zhang (丈) / bu (步) / chi (尺) / cun (寸) / fen (分) / li (釐 or 厘) / hao (毫) / si (丝) / hu (忽)

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Hong Kong units

chain to cek (尺)

chain to tsun (寸)
chain to fan (分)

Units: cek (尺) / tsun (寸) / fan (分)

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Thai units

Some of these units are still in use even though metric system was formally established in 1923. Before the metrication the old units were standartied to exact metric values.

chain to yot (โยชน์, league)
chain to sen (เส้น, rope)
chain to wa (วา, fathom)

chain to sok (ศอก, cubit)
chain to khuep (คืบ, span)
chain to nio (นิ้ว, finger)
chain to krabiat (กระเบียด, quarter of a finger)

Units: yot (โยชน์, league) / sen (เส้น, rope) / wa (วา, fathom) / sok (ศอก, cubit) / khuep (คืบ, span) / nio (นิ้ว, finger) / krabiat (กระเบียด, quarter of a finger)

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Optical

chain to dioptre (diopter)

Units: dioptre (diopter)

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Geographical (German)

chain to geographical mile

Units: geographical mile

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Computer Equipment

A rack unit, U or RU is a unit of measure that describes the height of equipment designed to mount in a 19-inch rack or a 23-inch rack. The 19-inch (482.6 mm) or 23-inch (584.2 mm) dimension refers to the width of the equipment mounting frame in the rack including the frame; the width of the equipment that can be mounted inside the rack is less.

chain to rack unit (U)

chain to horizontal pitch (HP)

Units: rack unit (U) / horizontal pitch (HP)

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Typographical (British and U.S. - ATA system)

chain to pica
chain to pica [PostScript]
chain to point (pt)

chain to point [PostScript] (pt)
chain to pixel (px)
chain to twip

Units: pica / pica [PostScript] / point (pt) / point [PostScript] (pt) / pixel (px) / twip

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Typographical (Europe - Didot system)

chain to cicero

chain to point (pt)

Units: cicero / point (pt)

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European footwear unit

chain to Paris point

Units: Paris point

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Astronomical

chain to red shift (z)
chain to parsec (pc)
chain to light year

chain to astronomical unit (au)
chain to light minute
chain to light second

Units: red shift (z) / parsec (pc) / light year / astronomical unit (au) / light minute / light second

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Grace Hopper's units of distance

Grace Hopper is famous for her nanoseconds visual aid. People used to ask her why satellite communication took so long. She started handing out pieces of wire that were just under one foot long (11.80 inches) — the distance that light travels in one nanosecond. She also passed out packets of pepper, calling the individual grains of ground pepper picoseconds. She also used these aids to illustrate why computers had to be small to be fast.

chain to light microsecond

chain to light nanosecond
chain to light picosecond

Units: light microsecond / light nanosecond / light picosecond

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Natural units

In physics, natural units are physical units of measurement based only on universal physical constants. The origin of their definition comes only from properties of nature and not from any human construct.

chain to Planck length (L)

Units: Planck length (L)

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chain to foot (ft)
chain to span (sp)
chain to nail
chain to shaftment
chain to hand (hd)
chain to palm (plm)
chain to inch (in)
chain to finger
chain to digit
chain to barleycorn
chain to poppyseed
chain to line
chain to button
chain to caliber
chain to thou (th)
chain to mil

chain to cuadra of Argentina
chain to cuadra of Bolivia
chain to cuadra of Chile
chain to cuadra of Colombia
chain to cuadra of Ecuador
chain to cuadra of Nicaragua
chain to cuadra of Paraguay
chain to cuadra of Uruguay
chain to vara of Argentina
chain to vara of Brazil
chain to vara of Chile
chain to vara of Colombia
chain to vara of Costa Rica
chain to vara of Cuba

chain to vara of Dominican Republic
chain to vara of Ecuador
chain to vara of El Salvador
chain to vara of Guatemala
chain to vara of Honduras
chain to vara of Mexico
chain to vara of Nicaragua
chain to vara of Panama
chain to vara of Paraguay
chain to vara of Peru (peruana)
chain to vara of Peru (española)
chain to vara of Uruguay
chain to vara of São Tomé and Principe
chain to vara of Venezuela

Chain. Measurements Converter