pt - Point. 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.
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1This is a conversion chart for point (Typographical (British and U.S. - ATA system)). 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.
2Enter the value you want to convert (point). Then click the Convert Me button.
Your value gets instantly converted to all other units on the page.
3Now find the unit you want and get the conversion result next to it. It's your answer.

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Conversion settings explained

First of all, you don't have to change any settings to use the converter. It's absolutely optional.

Number of significat figures

Do you want rounded off figures or scientifically precise ones? For everyday conversions we recommend choosing 3 or 4 significant digits. If you want maximum precision, set the number to 9

Digit groups separator

Choose how you want to have your digit groups separated in long numbers:

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

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  • Significant figures:
  • Digit groups separator:
Your value (point, pt):
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Metric

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

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

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

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

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

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

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

Optical

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

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

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

point to cicero
point to point (pt)
Units: cicero  / point (pt)
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» hide »

European footwear unit

point to Paris point
Units: Paris point
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Astronomical

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

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.
point to light microsecond
point to light nanosecond
point 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.
point to Planck length (L)
Units: Planck length (L)

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