Libra. 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 weight that are used today, including many national units of various countries, please switch to our main weight and mass conversion page.
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1,234,567.89comma
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Metric

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 weight conversion page.
libra to tonne
libra to kilogram (kg)
libra to gram (g)
Units: tonne  / kilogram (kg)  / gram (g)
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Avoirdupois (U.S.)

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 weight conversion page.
libra to short ton (US)
libra to pound (lb)
libra to ounce (oz)
Units: short ton (US)  / pound (lb)  / ounce (oz)
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Ancient Greek (Attic/Eubolic standard)

Many ancient weights were associated with currency designating the corresponding amount of silver. The same was true for Greek units of weight. There were two dominant weight standard, one originated in Euboea (second largest Greek island after Crete), the other was from Aegina. Archeologists have found though the real weights used in different cities varied greatly.
libra to talent (τάλαντον)
libra to mina (μνᾶ)
libra to dekadrachm (δεκάδραχμον, 10 drachmae)
libra to tetradrachm (τετράδραχμον, 4 drachmae)
libra to didrachm (δίδραχμον, 2 drachmae)
libra to stater (στατήρ, weight)
libra to drachma (δραχμή, dram)
libra to tetrobol (τετρώβολον, 4 obols)
libra to triobol (τριώβολον, 3 obols)
libra to diobol (διώβολον, 2 obols)
libra to obol (ὀβολός)
libra to tritartemorion (τριτημόριον, 3 tetartemoria)
libra to hemiobol (ἡμιωβόλιον, ½ obol)
libra to trihemitetartemorion (τριημιτεταρτημόριον, 1½ tetartemorion)
libra to tetartemorion (ταρτημόριον, ¼ obol)
libra to hemitetartemorion (ἡμιτεταρτημόριον, ½ tetartemorion)
Units: talent (τάλαντον)  / mina (μνᾶ)  / dekadrachm (δεκάδραχμον, 10 drachmae)  / tetradrachm (τετράδραχμον, 4 drachmae)  / didrachm (δίδραχμον, 2 drachmae)  / stater (στατήρ, weight)  / drachma (δραχμή, dram)  / tetrobol (τετρώβολον, 4 obols)  / triobol (τριώβολον, 3 obols)  / diobol (διώβολον, 2 obols)  / obol (ὀβολός)  / tritartemorion (τριτημόριον, 3 tetartemoria)  / hemiobol (ἡμιωβόλιον, ½ obol)  / trihemitetartemorion (τριημιτεταρτημόριον, 1½ tetartemorion)  / tetartemorion (ταρτημόριον, ¼ obol)  / hemitetartemorion (ἡμιτεταρτημόριον, ½ tetartemorion)
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Ancient Greek (Aeginetic standard)

During ancient times Aegina was a rival of Athens, the great sea power of the era.
libra to talent (τάλαντον)
libra to mina (μνᾶ)
libra to dekadrachm (δεκάδραχμον, 10 drachmae)
libra to tetradrachm (τετράδραχμον, 4 drachmae)
libra to didrachm (δίδραχμον, 2 drachmae)
libra to stater (στατήρ, weight)
libra to drachma (δραχμή, dram)
libra to tetrobol (τετρώβολον, 4 obols)
libra to triobol (τριώβολον, 3 obols)
libra to diobol (διώβολον, 2 obols)
libra to obol (ὀβολός)
libra to tritartemorion (τριτημόριον, 3 tetartemoria)
libra to hemiobol (ἡμιωβόλιον, ½ obol)
libra to trihemitetartemorion (τριημιτεταρτημόριον, 1½ tetartemorion)
libra to tetartemorion (ταρτημόριον, ¼ obol)
libra to hemitetartemorion (ἡμιτεταρτημόριον, ½ tetartemorion)
Units: talent (τάλαντον)  / mina (μνᾶ)  / dekadrachm (δεκάδραχμον, 10 drachmae)  / tetradrachm (τετράδραχμον, 4 drachmae)  / didrachm (δίδραχμον, 2 drachmae)  / stater (στατήρ, weight)  / drachma (δραχμή, dram)  / tetrobol (τετρώβολον, 4 obols)  / triobol (τριώβολον, 3 obols)  / diobol (διώβολον, 2 obols)  / obol (ὀβολός)  / tritartemorion (τριτημόριον, 3 tetartemoria)  / hemiobol (ἡμιωβόλιον, ½ obol)  / trihemitetartemorion (τριημιτεταρτημόριον, 1½ tetartemorion)  / tetartemorion (ταρτημόριον, ¼ obol)  / hemitetartemorion (ἡμιτεταρτημόριον, ½ tetartemorion)
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Ancient Roman

The base Roman unit of weight was libra (Roman pound) that contained 12 uncias. Modern estimates of the libra ranges from 322 to 329 grams with 328.9 grams an accepted figure. The base unit for coins was as that used to be 12 uncias initially and then gradually reduced to only half an uncia. Another silver coin was called denarius equal to 10 asses (from Latin dēnī - containing ten), it was later recalibrated to contain 16 asses or four sestertii. A literal meaning of each unit is given in parentheses.
libra to libra (Roman pound, balance)
libra to deunx (11⁄12 libra, less a twelfth)
libra to dextans (10⁄12 libra, less a sixth)
libra to dodrans (9⁄12 libra, less a fourth)
libra to bes (8⁄12 libra, two of an as)
libra to septunx (7⁄12 libra, seven-twelfths)
libra to semis (6⁄12 libra, a half)
libra to quincunx (5⁄12 libra, five-twelfths)
libra to triens (4⁄12 libra, a third)
libra to quadrans (1⁄4 libra, a fourth)
libra to teruncius (3⁄12 libra, triple twelfth)
libra to sextans (2⁄12 libra, a sixth)
libra to sescuncia (1⁄8 libra, 1½ twelfths)
libra to uncia (Roman ounce, a twelfth)
libra to semuncia (½ uncia, half-twelfth)
libra to duella (⅓ uncia, little double [sixths])
libra to sicilicus (¼ uncia, little sickle)
libra to sextula (1⁄6 uncia, little sixth)
libra to drachma (1⁄8 uncia, from Greek unit δραχμή)
libra to semisextula (1⁄12 uncia, half-little sixth)
libra to scrupulum (1⁄24 uncia, small pebble)
libra to obolus (1⁄48 uncia, from Greek unit ὀβολός 'metal spit')
libra to siliqua (1⁄144 uncia, carat, carob seed)
Units: libra (Roman pound, balance)  / deunx (11⁄12 libra, less a twelfth)  / dextans (10⁄12 libra, less a sixth)  / dodrans (9⁄12 libra, less a fourth)  / bes (8⁄12 libra, two of an as)  / septunx (7⁄12 libra, seven-twelfths)  / semis (6⁄12 libra, a half)  / quincunx (5⁄12 libra, five-twelfths)  / triens (4⁄12 libra, a third)  / quadrans (1⁄4 libra, a fourth)  / teruncius (3⁄12 libra, triple twelfth)  / sextans (2⁄12 libra, a sixth)  / sescuncia (1⁄8 libra, 1½ twelfths)  / uncia (Roman ounce, a twelfth)  / semuncia (½ uncia, half-twelfth)  / duella (⅓ uncia, little double [sixths])  / sicilicus (¼ uncia, little sickle)  / sextula (1⁄6 uncia, little sixth)  / drachma (1⁄8 uncia, from Greek unit δραχμή)  / semisextula (1⁄12 uncia, half-little sixth)  / scrupulum (1⁄24 uncia, small pebble)  / obolus (1⁄48 uncia, from Greek unit ὀβολός 'metal spit')  / siliqua (1⁄144 uncia, carat, carob seed)
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Biblical

Israelites initially followed Babylonian system of units, but the units were later altered. There were royal and common versions of units and each of these forms had heavy and light versions. Gradually the system reformed again under the Egyptian influence. For example a shekel (silver coin) could weigh anything between 8 and 16 grams in various places and periods of history. That's why it is impossible get an exact conversion from biblical units to contemporary ones.
libra to talent
libra to mina
libra to shekel
libra to pim
libra to beka
libra to gerah
Units: talent  / mina  / shekel  / pim  / beka  / gerah
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Baha'i Faith Units

The Bahá'í Faith is a religion teaching the essential worth of all religions, and the unity and equality of all people. It was establised in Persia in 1863.
libra to mithqal
libra to nakhud
Units: mithqal  / nakhud
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Old Spanish

libra to tonelada
libra to fanega de trigo (bushel of wheat)
libra to fanega de centeno (bushel of rye)
libra to fanega de cebada (bushel of barley)
libra to quintal
libra to arroba
libra to marco
libra to cuarterón
libra to onza
libra to ochava
libra to adarme
libra to grano
Units: tonelada  / fanega de trigo (bushel of wheat)  / fanega de centeno (bushel of rye)  / fanega de cebada (bushel of barley)  / quintal  / arroba  /  / marco  / cuarterón  / onza  / ochava  / adarme  / grano
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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.
libra to tonelada
libra to quintal
libra to arroba
libra to arrátel (libra)
libra to quarta
libra to onça
libra to oitava
libra to escrópulo
libra to grão
Units: tonelada  / quintal  / arroba  / arrátel (libra)  / quarta  / onça  / oitava  / escrópulo  / grão
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Old Russian

libra to berkovets
libra to pood
libra to pound
libra to lot
libra to zolotnik
libra to dolya
Units: berkovets  / pood  / pound  / lot  / zolotnik  / dolya
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Old French

There were many local variations; the following are Quebec and Paris definitions
libra to quintal
libra to livre
Units: quintal  / livre
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Old German (Prussian)

These units were used before adoption of metric system in 1872.
libra to schiffspfund
libra to doppelzentner
libra to zentner
libra to stain
libra to pfund
libra to mark
libra to unze
libra to loth
libra to quentchen
libra to quint
libra to pfennig
libra to gran
Units: schiffspfund  / doppelzentner  / zentner  / stain  / pfund  / mark  / unze  / loth  / quentchen  / quint  / pfennig  / gran
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Old Austrian

These units were used before adoption of metric system in 1871.
libra to karch
libra to saum
libra to zentner
libra to stain
libra to pfund
libra to mark
libra to vierding
libra to unze
libra to loth
libra to quentchen
libra to denzt
Units: karch  / saum  / zentner  / stain  / pfund  / mark  / vierding  / unze  / loth  / quentchen  / denzt
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Old Swedish

Common measurement system was introduced in Sweden by law in 1665. The oldest units like mark were used since Viking era. Sweden switched to metric system in 1889.
libra to skeppspund
libra to lispund
libra to bismerpund
libra to skålpund
libra to mark
libra to ort
Units: skeppspund  / lispund  / bismerpund  / skålpund  / mark  / ort

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