Convert Mile (mi, British Imperial Measure Before 1963) to Dioptre (diopter) (Optical)

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.
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mile (mi)
British Imperial Measure before 1963
dioptre (diopter)
Optical

This page features online conversion from mile to dioptre (diopter). These units belong to different measurement systems. The first one is from British Imperial Measure Before 1963. The second one is from Optical.

If you need to convert mile to another compatible unit, please pick the one you need on the page below. You can also switch to the converter for dioptre (diopter) to mile.

Other Units the Values Above Are Equal To

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Metric

mile to kilometer (km)
mile to meter (m)
mile to decimeter (dm)
mile to centimeter (cm)
mile to millimeter (mm)
mile to micrometre (micron)
mile to nanometer (nm)
mile 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.

mile to league
mile to mile (mi)
mile to land
mile to furlong
mile to bolt
mile to chain
mile to pole
mile to rod (rd)
mile to perch
mile to yard (yd)
mile to feet and inches (x'y")
mile to span
mile to hand
mile to inch (in)
mile to line
mile to mil
mile 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.
mile to league
mile to mile (mi)
mile to land
mile to skein
mile to bolt
mile to shackle
mile to furlong
mile to chain
mile to rope
mile to pole
mile to goad
mile to ell
mile to yard (yd)
mile to pace
mile to cubit (cu)
mile to foot (ft)
mile to span (sp)
mile to nail
mile to shaftment
mile to hand (hd)
mile to palm (plm)
mile to inch (in)
mile to finger
mile to digit
mile to barleycorn
mile to poppyseed
mile to line
mile to button
mile to caliber
mile to thou (th)
mile to mil
Units: league  / mile (mi)  / land  / skein  / bolt  / shackle  / furlong  / chain  / 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

mile to furlong
mile to Ramsden's (engineers') chain (ch)
mile to Gunter's (surveyors') chain (ch)
mile to Gurley's chain (ch)
mile to Gunter's (surveyors') pole
mile to Gunter's (surveyors') yard
mile 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.
mile to nautical league (naut.leag)
mile to nautical mile (naut.mi)
mile to cable length (cbl)
mile 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.
mile to US nautical mile
mile 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.
mile to Admiralty mile
mile 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.
mile to cuadra of Argentina
mile to cuadra of Bolivia
mile to cuadra of Chile
mile to cuadra of Colombia
mile to cuadra of Ecuador
mile to cuadra of Nicaragua
mile to cuadra of Paraguay
mile to cuadra of Uruguay
mile to vara of Argentina
mile to vara of Brazil
mile to vara of Chile
mile to vara of Colombia
mile to vara of Costa Rica
mile to vara of Cuba
mile to vara of Dominican Republic
mile to vara of Ecuador
mile to vara of El Salvador
mile to vara of Guatemala
mile to vara of Honduras
mile to vara of Mexico
mile to vara of Nicaragua
mile to vara of Panama
mile to vara of Paraguay
mile to vara of Peru (peruana)
mile to vara of Peru (española)
mile to vara of Uruguay
mile to vara of São Tomé and Principe
mile to vara of Venezuela
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

mile to ri (里)
mile to cho (町)
mile to jo (丈)
mile to hiro (尋)
mile to ken (間)
mile to shaku (尺)
mile to sun (寸)
mile to bu (分)
mile to rin (厘)
mile 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

mile to li (市里)
mile to yin (引)
mile to zhang (市丈)
mile to chi (市尺)
mile to cun (市寸)
mile to fen (市分)
mile to li (釐 or 厘)
mile to hao (毫)
mile to si (丝)
mile 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

mile to li (里)
mile to yin (引)
mile to zhang (丈)
mile to bu (步)
mile to chi (尺)
mile to cun (寸)
mile to fen (分)
mile to li (釐 or 厘)
mile to hao (毫)
mile to si (丝)
mile 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

mile to cek (尺)
mile to tsun (寸)
mile 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.
mile to yot (โยชน์, league)
mile to sen (เส้น, rope)
mile to wa (วา, fathom)
mile to sok (ศอก, cubit)
mile to khuep (คืบ, span)
mile to nio (นิ้ว, finger)
mile 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

mile to dioptre (diopter)
Units: dioptre (diopter)
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Geographical (German)

mile 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.
mile to rack unit (U)
mile to horizontal pitch (HP)
Units: rack unit (U)  / horizontal pitch (HP)
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Typographical (British and U.S. - ATA system)

mile to pica
mile to pica [PostScript]
mile to point (pt)
mile to point [PostScript] (pt)
mile to pixel (px)
mile to twip
Units: pica  / pica [PostScript]  / point (pt)  / point [PostScript] (pt)  / pixel (px)  / twip
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Typographical (Europe - Didot system)

mile to cicero
mile to point (pt)
Units: cicero  / point (pt)
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European footwear unit

mile to Paris point
Units: Paris point
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Astronomical

mile to red shift (z)
mile to parsec (pc)
mile to light year
mile to astronomical unit (au)
mile to light minute
mile 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.
mile to light microsecond
mile to light nanosecond
mile 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.
mile to Planck length (L)
Units: Planck length (L)

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