Tonnage. Conversion Chart

This converter features contemporary units of capacity. There is also a special converter for historical units of volume 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 tonnage (Ship tonnage measurements). To switch the unit simply find the one you want on the page and click it.
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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

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

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Your value (tonnage):
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Metric

tonnage to cubic kilometer (km³)
tonnage to cubic meter (m³)
tonnage to cubic decimeter (dm³)
tonnage to cubic centimeter (cc)
tonnage to cubic millimeter (mm³)
tonnage to hectoliter (hl)
tonnage to decaliter
tonnage to liter (l)
tonnage to deciliter (dl)
tonnage to centiliter (cl)
tonnage to milliliter (ml)
tonnage to microliter (µl)
Units: cubic kilometer (km³)  / cubic meter (m³)  / cubic decimeter (dm³)  / cubic centimeter (cc)  / cubic millimeter (mm³)  / hectoliter (hl)  / decaliter  / liter (l)  / deciliter (dl)  / centiliter (cl)  / milliliter (ml)  / microliter (µl)
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U.S. Liquid Measure

tonnage to acre foot
tonnage to barrel (petroleum)
tonnage to gallon (gal)
tonnage to quart (qt)
tonnage to pint (pt)
tonnage to gill
tonnage to fluid ounce (fl oz)
tonnage to fluid dram (fl dr)
tonnage to minim (min)
Units: acre foot  / barrel (petroleum)  / gallon (gal)  / quart (qt)  / pint (pt)  / gill  / fluid ounce (fl oz)  / fluid dram (fl dr)  / minim (min)
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U.S. Dry Measure

tonnage to barrel
tonnage to bushel (bu)
tonnage to peck (pk)
tonnage to gallon (gal)
tonnage to quart (qt)
tonnage to pint (pt)
Units: barrel  / bushel (bu)  / peck (pk)  / gallon (gal)  / quart (qt)  / pint (pt)
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Apothecaries

The traditional English apothecaries' system defines weights, not volumes. However, there was apothecaries' system for volumes too, though less commonly used. Before introduction of the imperial units, all apothecaries' measures were based on the wine gallon which later became the base of U.S. liquid gallon.

In addition to five official apothecaries' units pint, fliud ounce, fluid dram, fluid scruple, and minim, there was a set of unofficial but widely used units for various spoon and glass sizes. We list them here too.

In 1858 apothercaries' system was officially abolished in in the U.K. in favour of the standard Avoirdupois system. In the United States the apothecaries' system remained in use until 1971, when it was officially abolished in favor of the metric system.

tonnage to pint (pt)
tonnage to glass-tumbler
tonnage to breakfast cup
tonnage to tea cup
tonnage to wine glass
tonnage to fluid ounce (ƒ℥)
tonnage to table spoon
tonnage to dessert spoon
tonnage to fluid dram (ƒʒ)
tonnage to tea spoon
tonnage to minim
Units: pint (pt)  / glass-tumbler  / breakfast cup  / tea cup  / wine glass  / fluid ounce (ƒ℥)  / table spoon  / dessert spoon  / fluid dram (ƒʒ)  / tea spoon  / minim
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British Imperial Liquid And Dry

tonnage to perch
tonnage to barrel
tonnage to bushel (bu)
tonnage to peck (pk)
tonnage to gallon (gal)
tonnage to quart (qt)
tonnage to pint (pt)
tonnage to fluid ounce (oz)
tonnage to fluid drachm (fl dr)
tonnage to fluid scruple
tonnage to minim (min)
Units: perch  / barrel  / bushel (bu)  / peck (pk)  / gallon (gal)  / quart (qt)  / pint (pt)  / fluid ounce (oz)  / fluid drachm (fl dr)  / fluid scruple  / minim (min)
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British and U.S. derivatives of length units

tonnage to cubic mile (mi³)
tonnage to mil cubic feet (mcf)
tonnage to cubic yard (yd³)
tonnage to centum cubic feet (ccf)
tonnage to cubic foot (ft³)
tonnage to cubic inch (in³)
Units: cubic mile (mi³)  / mil cubic feet (mcf)  / cubic yard (yd³)  / centum cubic feet (ccf)  / cubic foot (ft³)  / cubic inch (in³)
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English wine cask units

Imperial and U.S. definitions of these units slightly differ. We use Imperial definitions here.
tonnage to tun
tonnage to butt
tonnage to puncheon
tonnage to hogshead
tonnage to tierce
tonnage to barrel
tonnage to rundlet
Units: tun  / butt  / puncheon  / hogshead  / tierce  / barrel  / rundlet
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English brewery cask units

Historically the terms beer and ale referred to distinct brews. From the mid 15th century until 1803 in Britain "ale" casks and "beer" casks differed in the number of gallons they contained. We provide conversions for the latest standard (1824) of units that are based on imperial gallons.
tonnage to hogshead
tonnage to barrel
tonnage to kilderkin
tonnage to firkin
tonnage to pin
Units: hogshead  / barrel  / kilderkin  / firkin  / pin
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U.S. brewery cask units

In the U.S. only beer barrel is legally defined. Keg sizes are not standardized and could be any size smaller than a barrel. However, typical beer keg size is a half of beer barrel.
tonnage to US beer barrel
tonnage to US beer half-barrel
tonnage to US beer keg (typical)
tonnage to US beer quarter-barrel
Units: US beer barrel  / US beer half-barrel  / US beer keg (typical)  / US beer quarter-barrel
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Cooking (U.S.)

tonnage to cup
tonnage to tablespoon
tonnage to teaspoon
Units: cup  / tablespoon  / teaspoon
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Cooking (International)

tonnage to cup
tonnage to tablespoon
tonnage to teaspoon
Units: cup  / tablespoon  / teaspoon
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Cooking (Australian)

tonnage to tablespoon
tonnage to dessert teaspoon
tonnage to teaspoon
Units: tablespoon  / dessert teaspoon  / teaspoon
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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.
tonnage to Planck volume (L³)
Units: Planck volume (L³)
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Astronomical

tonnage to cubic parsec (pc³)
tonnage to cubic light year
tonnage to cubic light minute
tonnage to cubic light second
Units: cubic parsec (pc³)  / cubic light year  / cubic light minute  / cubic light second
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Ship tonnage measurements

Register ton unit was defined by the Moorsom Commission (Great Britain) in 1854 to measure ship internal volume. It was officially replaced by tonnage when the International Maritime Organization (IMO) adopted The International Convention on Tonnage Measurement of Ships on 23 June 1969. Since 18 July 1994 the gross and net tonnages are the only official measures used for the ships.
tonnage to register ton
tonnage to Panama Canal Universal Measurement System (PC/UMS)
Units:  / register ton  / Panama Canal Universal Measurement System (PC/UMS)
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Lumber measure

These units are sometimes used to measure the volume of lumber in Great Britain, the United States, Canada, Australia and New Zealand. The same units is called board-foot in the U.S. and Canada and super foot or superficial foot in Australia and New Zealand. One board-foot is the volume of a one-foot length of a board one foot wide and one inch thick.
tonnage to million board-feet (mmfbm, mmbdft, mmbf)
tonnage to cord
tonnage to thousand board-feet (mfbm, mbdft, mbf)
tonnage to hoppus ton (HT)
tonnage to cubic ton of timber
tonnage to stere
tonnage to hoppus foot, hoppus cube (h ft)
tonnage to boardfoot, board-foot (fbmm, bdft, bf)
Units: million board-feet (mmfbm, mmbdft, mmbf)  / cord  / thousand board-feet (mfbm, mbdft, mbf)  / hoppus ton (HT)  / cubic ton of timber  / stere  / hoppus foot, hoppus cube (h ft)  / boardfoot, board-foot (fbmm, bdft, bf)
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Japanese

tonnage to sai (才)
tonnage to shaku (勺)
tonnage to go (合)
tonnage to sho (升)
tonnage to to (斗)
tonnage to koku (石)
Units: sai (才)  / shaku (勺)  / go (合)  / sho (升)  / to (斗)  / koku (石)
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Chinese units of 1930

tonnage to dan (市石)
tonnage to dou (市斗)
tonnage to sheng (市升)
tonnage to ge (合)
tonnage to shao (勺)
tonnage to cuo (撮)
Units: dan (市石)  / dou (市斗)  / sheng (市升)  / ge (合)  / shao (勺)  / cuo (撮)
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Chinese units of 1915

tonnage to dan (石)
tonnage to hu (斛)
tonnage to dou (斗)
tonnage to sheng (升)
tonnage to ge (合)
tonnage to shao (勺)
Units: dan (石)  / hu (斛)  / dou (斗)  / sheng (升)  / ge (合)  / shao (勺)
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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 standardized to exact metric values.
tonnage to kwian (เกวียน, cartload)
tonnage to sat (สัด, basket)
tonnage to thang (ถัง, tank)
tonnage to thanan (ทะนาน, coconut shell)
tonnage to fai mue (ฟายมือ, palm of grain)
tonnage to kam mue (กำมือ, hand of grain)
tonnage to yip mue (หยิบมือ, pinch)
Units: kwian (เกวียน, cartload)  / sat (สัด, basket)  / thang (ถัง, tank)  / thanan (ทะนาน, coconut shell)  / fai mue (ฟายมือ, palm of grain)  / kam mue (กำมือ, hand of grain)  / yip mue (หยิบมือ, pinch)

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