Anker (unit) explained

An Anker (usually anglicized as Anchor^[1]) was a Dutch unit of capacity for wine or brandy equal to 10 US gallons^[2] that was used as a standard liquid measurement.^[3] It was most commonly used in Colonial times in New York and New Jersey, thanks to the earlier Dutch settlement of New Amsterdam (later New York City).

Many European countries had a different measurement of this unit that varied from 9 to 11 US gallons [equivalent to 7.5 to 9.25 Imperial gallons<ref>The Imperial gallon was based on the British Ale gallon.</ref> or 34 to 42 Liters].^{[4] [5]}

Conversion

1 Anker ≡ 10 US gallons [8.33 [[Imperial gallon]]s or 37.8541 Liters]

1 Anker ≡ 0.03785411784 m³

Notes and References

1. Book: Lederer, Richard M.. Colonial American English: A Glossary.. A Verbatim Book. 1985. 978-0930454197. Essex, Connecticut. ??.
2. The US gallon was based on the British wine gallon, a liquid measurement for wine and brandy. It was called a wine gallon to distinguish it from the ale gallon, the beer gallon, and the dry-measure corn gallon for grain. They were replaced by the Imperial measure system by 1826.
3. Book: Cardarelli, François. Encyclopaedia of Scientific Units, Weights and Measures. Springer. 2003. 978-1-4471-1122-1. London. 49.
4. Book: Simmonds, P[eter] L[und]. The Commercial Dictionary of Trade Products, Manufacturing and Technical Terms, Moneys, Weights, and Measures of all Countries (New edition revised and enlarged).. George Routledge and Sons. 1892. London. 12.
5. "Anker, a small cask or runlet containing 8 1/3 [Imperial] gallons, which in this country is now obsolete. The anker is still, however, a common liquid measure in many of the Continental states, varying from 7½ to 9¼ [Imperial] gallons." - Simmonds, The Commercial Dictionary of Trade Products, Manufacturing and Technical Terms, Moneys, Weights, and Measures of all Countries (1892), pg. 12