Tun

US customaryHistorical unit (no longer in standard use)

252 US gallons (954 L), four hogsheads or two pipes.. A very large wine cask, related to the word 'ton'.

1 tun = 953.9237696 liters (approximately).

1 tun = 953.9237696 liters

About the tun

From Old English tunne and Medieval Latin tunna, the tun gave English both a cask and, through its close cousin ton, a way of rating ships by how many tuns of wine they could carry. The spellings were once used interchangeably, and a full tun of wine weighs about one long ton of 2,240 pounds.

Its size drifted. The tun began at 256 wine gallons and was cut to 252 before the fifteenth century, a number divisible by seven and many smaller integers. A customs paper of 1507 gives 240 gallons. The Queen Anne gallon of 231 cubic inches, adopted in 1706, made a tun roughly a cylinder 42 inches across and high, and the 1824 imperial system redefined it as 210 imperial gallons.

The US figure of 252 gallons is about 953.9 litres (953.92 L as used here), while the imperial tun is only about 0.08 percent larger. It tops the English wine ladder: two butts, three puncheons, four hogsheads or six tierces, with the same arithmetic working in either gallon.

Sources: Wikipedia: Tun (unit); Wikipedia: Hogshead

Tun conversion chart

1 tun expressed in every other volume unit:

Unit1 tun
Liters953.9237696
Milliliters953,923.7696
US Gallons252
US Cups4,032
US Fluid Ounces32,256
Cubic Meters0.9539237696
Cubic Centimeters953,923.7696
US Quarts1,008
US Pints2,016
US Tablespoons64,512
US Teaspoons193,536
Metric Cups3,815.695078
Metric Tablespoons63,594.91797
Metric Teaspoons190,784.7539
Imperial Gallons209.8338945
Imperial Pints1,678.671156
Imperial Fluid Ounces33,573.42312
Cubic Inches58,212
Cubic Feet33.6875
Cubic Yards1.247685185
Oil Barrels6
Cubic Millimeters953,923,769.6
Microliters953,923,769.6
Centiliters95,392.37696
Deciliters9,539.237696
Hectoliters9.539237696
Cubic Kilometers9.539237696×10⁻¹⁰
Australian Tablespoons47,696.18848
US Legal Cups3,974.682373
Imperial Quarts839.3355781
Cubic Miles2.28858483×10⁻¹⁰
Wine Bottles1,271.898359
Magnums635.9491797
Jeroboams317.9745899
Methuselahs158.9872949
Nebuchadnezzars63.59491797
US Gills8,064
US Fluid Drams258,048
US Minims15,482,880
Jiggers21,504
Pinches3,096,576
Dashes1,548,288
Imperial Gills6,714.684625
US Bushels27.07006073
US Pecks108.2802429
US Dry Quarts866.2419434
US Dry Pints1,732.483887
US Dry Barrels8.25
US Liquid Barrels8
UK Beer Barrels5.828719292
Firkins23.31487717
Kilderkins11.65743858
Hogsheads (ale)3.885812862
Tierces6
Hogsheads (wine)4
Puncheons3
Butts (pipe)2
Acre-feet0.0007733585859
Cords0.2631835938
Board Feet404.25
Cyathi20,971.75921
Sextarii1,747.646601
Congii291.2744335
Modii109.2279125
Amphorae36.40930418
Omers433.6017134
Hin260.1610281
Baths (biblical)43.36017134
Homers4.336017134
Gō5,288.098864
Shō528.8098864
Tō52.88098864
Koku5.288098864
Charkas7,755.84983
Shtofs775.584983
Vedros77.5584983

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