volume · England / Britain · Medieval–modern

hogshead

variant

Definition

Early-17th-century wine context: hogshead = 1/4 tun ≈63 old wine gallons.

wine nominal ≈63 old wine gal

Cask names varied by commodity; nominal standards were not always precisely observed.

Retained primarily for historical, educational, or reference use rather than as a current standardized calculator unit.

A 'hogshead' might be a standardized trade measure or simply a cask description.

volume · England / Britain · Medieval / Early modern

63 old wine gallons; old wine gallon corresponds to 231 cubic inches, yielding ≈238.48 L with modern inch definition.

approx.

Source tier Peer-reviewed / scholarly · confidence High for wine relationship

volume · International · Modern

Non-SI unit accepted for use with the SI; 1 L = 1 dm³ = 10⁻³ m³.

volume · International · Modern

1 mL = 10^-3 L = 10^-6 m³.

m³

volume · International · Modern

Coherent SI derived unit for volume, equal to metre cubed.