Line. Conversion Chart

This conversion page features historical units (ancient, medieval, etc.) that are mostly no longer in use. If you are looking for units of length that are used today, including many national units of various countries, please switch to our main length conversion page.
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We only include several basic units here for you to convert historical units to contemporary ones. A more comprehensive list of metric units is available on the main length conversion page.
line to kilometer (km)
line to meter (m)
line to centimeter (cm)
line to millimeter (mm)
Units: kilometer (km)  / meter (m)  / centimeter (cm)  / millimeter (mm)
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The American System of Measures (US Customary Units)

We only include several basic units here for you to convert historical units to contemporary ones. A more comprehensive list of U.S. units is available on the main length conversion page.
line to mile (mi)
line to yard (yd)
line to inch (in)
Units: mile (mi)  / yard (yd)  / foot (ft)  / inch (in)
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Ancient Egypt

It might be hard to imagine, but these units dates back to 3100 BC. Egyptian people used them 5000 years ago. These units are distant ancestors of US customary units used today.
line to iteru (river measure)
line to knet (rod of cord)
line to nbiw (pole)
line to meh niswt (royal cubit)
line to meh nedjes (short cubit)
line to remen
line to djeser, bu
line to pedj-aa (large span)
line to pedj-sheser (small span)
line to amem (fist)
line to deret (hand)
line to shesep (palm)
line to djeba (finger)
Units: iteru (river measure)  / knet (rod of cord)  / nbiw (pole)  / meh niswt (royal cubit)  / meh nedjes (short cubit)  / remen  / djeser, bu  / pedj-aa (large span)  / pedj-sheser (small span)  / amem (fist)  / deret (hand)  / shesep (palm)  / djeba (finger)
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Ancient Greek

The values of Greek units varied according to location and epoch. Relative proportions though were generally the same. Greek measures were in general derived from measurement system of Ancient Egypt.
line to schoinos (σχοινός)
line to parasanges (παρασάγγες, league)
line to dolichos (δόλιχος)
line to milion (μίλιον)
line to hippikon (ἱππικόν)
line to diaulos (δίαυλος)
line to στάδιον, stadion
line to stadium olympic
line to stadium attic
line to stadium ptolemey
line to plethron (πλέθρον)
line to hamma (ἅμμα)
line to dekapous (δεκάπους)
line to akaina (ἄκαινα)
line to kalamos (κάλαμος)
line to orgyia (ὄργυια, fathom)
line to diploun bēma (διπλοῦν βῆμα, double pace)
line to haploun bēma (ἁπλοῦν βῆμα, single pace)
line to pēchys (πῆχυς, elbow)
line to pygōn (πυγών)
line to pygmē (πυγμή, forearm)
line to pous (πούς, foot)
line to spithamē (σπιθαμή, span of all fingers)
line to orthodōron (ὀρθόδωρον, wrist to the tip of meddle finger)
line to lichas (λιχάς)
line to hemipodion (ἡμιπόδιον)
line to dichas (διχάς, midfoot)
line to dōron (δῶρον)
line to palaiste (παλαιστή, palm)
line to kondylos (κόνδυλος, two fingers)
line to daktylos (δάκτυλος, finger)
Units: schoinos (σχοινός)  / parasanges (παρασάγγες, league)  / dolichos (δόλιχος)  / milion (μίλιον)  / hippikon (ἱππικόν)  / diaulos (δίαυλος)  / στάδιον, stadion  / stadium olympic  / stadium attic  / stadium ptolemey  / plethron (πλέθρον)  / hamma (ἅμμα)  / dekapous (δεκάπους)  / akaina (ἄκαινα)  / kalamos (κάλαμος)  / orgyia (ὄργυια, fathom)  / diploun bēma (διπλοῦν βῆμα, double pace)  / haploun bēma (ἁπλοῦν βῆμα, single pace)  / pēchys (πῆχυς, elbow)  / pygōn (πυγών)  / pygmē (πυγμή, forearm)  / pous (πούς, foot)  / spithamē (σπιθαμή, span of all fingers)  / orthodōron (ὀρθόδωρον, wrist to the tip of meddle finger)  / lichas (λιχάς)  / hemipodion (ἡμιπόδιον)  / dichas (διχάς, midfoot)  / dōron (δῶρον)  / palaiste (παλαιστή, palm)  / kondylos (κόνδυλος, two fingers)  / daktylos (δάκτυλος, finger)
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Ancient Roman

Roman length units were very well defined. The value of the base unit pes (foot) was discovered by John Greaves in 1639 after he made a lot of measurements in the ruins of Rome. Since then we know that the value of one pes was between 0.967 and 0.986 English feet. An accepted modern value is 296 mm. For most Roman units below we give an English equivalent in parentheses.
line to schœnus (rush rope)
line to leuga (league)
line to mille passus (mile)
line to stadium (stade, furlong)
line to actus
line to decempeda
line to pertica (perch)
line to passus (pace)
line to pes sestertius
line to gradus (step)
line to cubitus (cubit)
line to palmipes
line to pes (foot)
line to palmus major (palm length)
line to palmus (palm width)
line to uncia (inch)
line to pollex (thumb)
line to digitus (finger)
Units: schœnus (rush rope)  / leuga (league)  / mille passus (mile)  / stadium (stade, furlong)  / actus  / decempeda  / pertica (perch)  / passus (pace)  / pes sestertius  / gradus (step)  / cubitus (cubit)  / palmipes  / pes (foot)  / palmus major (palm length)  / palmus (palm width)  / uncia (inch)  / pollex (thumb)  / digitus (finger)
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line to cubit
line to span
line to handbreadth
line to etzbah
Units: cubit  / span  / handbreadth  / etzbah
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Old Spanish

In various provinces of Spain diferent variations of units were used. The conversions below use Castilian system. Although most of these units are now obsolete, some can still be used today in the countries of Latin America.
line to legua de por grado (league of the degree)
line to legua marina (nautical)
line to legua
line to milla marina (nautical)
line to milla
line to cuerda of Valencia
line to cuerda
line to estadal
line to braza
line to paso
line to vara
line to codo de ribera
line to codo
line to pie
line to palmo
line to coto
line to pulgada
line to linea
line to punto
Units: legua de por grado (league of the degree)  / legua marina (nautical)  / legua  / milla marina (nautical)  / milla  / cuerda of Valencia  / cuerda  / estadal  / braza  / paso  / vara  / codo de ribera  / codo  / pie  / palmo  / coto  / pulgada  / linea  / punto
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Old Portuguese

These units were used in Portugal, Brazil and other countries of the Portuguese Empire until the adoption of the metric system in 19th century.
line to braça
line to toesa
line to passo geométrico
line to vara
line to côvado
line to pé
line to palmo de craveira
line to polegada
line to linha
line to ponto
Units: braça  / toesa  / passo geométrico  / vara  / côvado  /  / palmo de craveira  / polegada  / linha  / ponto
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Old French

There were many local variations; the following are Quebec and Paris definitions
line to lieue commune
line to lieue marine
line to lieue de post
line to lieue metrique
line to arpent
line to perche
line to toise
line to pied [foot]
line to pouce [inch]
line to ligne
Units: lieue commune  / lieue marine  / lieue de post  / lieue metrique  / arpent  / perche  / toise  / pied [foot]  / pouce [inch]  / ligne
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Old Russian

line to mile
line to verst
line to mezhevaya verst
line to kosaya sazhen
line to sazhen
line to makhovaya sazhen
line to arshin
line to ell
line to foot
line to pyad
line to vershok
line to inch
Units: mile  / verst  / mezhevaya verst  / kosaya sazhen  / sazhen  / makhovaya sazhen  / arshin  / ell  / foot  / pyad  / vershok  / inch  /
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Old German (Prussian)

These units were used before adoption of metric system in 1872.
line to meile
line to ruthe
line to elle
line to fuss
line to zoll
line to linie
Units: meile  / ruthe  / elle  / fuss  / zoll  / linie
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Old Austrian

These units were used before adoption of metric system in 1871.
line to meile
line to ruthe
line to klafner
line to fuss
line to zoll
line to linie
line to punkt
Units: meile  / ruthe  / klafner  / fuss  / zoll  / linie  / punkt
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» hide »

Old Swedish

Common measurement system was introduced in Sweden by law in 1665. Since then the system was slightly altered twice: in 1735 and 1855. Sweden switched to metric system in 1889.
line to nymil (new mile, used since 1889 till now)
line to mil (mile)
line to fjärdingsväg
line to rev before 1855
line to rev after 1855
line to stång
line to famn (fanthom)
line to aln (forealrm)
line to fot (foot)
line to kvarter
line to tvärhand (hand)
line to tum (thumb or inch) before 1855
line to tum (thumb or inch) after 1855
line to linje (line) before 1855
line to linje (line) after 1855
Units: nymil (new mile, used since 1889 till now)  / mil (mile)  / fjärdingsväg  / rev before 1855  / rev after 1855  / stång  / famn (fanthom)  / aln (forealrm)  / fot (foot)  / kvarter  / tvärhand (hand)  / tum (thumb or inch) before 1855  / tum (thumb or inch) after 1855  / linje (line) before 1855  / linje (line) after 1855

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