gallon, Imperial gallon, congius

a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters

• British capacity unit, Imperial capacity unit — a unit of measure for capacity officially adopted in the British Imperial System; British units are both dry and wet

• quart — a British imperial capacity measure (liquid or dry) equal to 2 pints or 1.136 liters

• barrel, bbl — any of various units of capacity
• bushel — a British imperial capacity measure (liquid or dry) equal to 4 pecks
• firkin — a British unit of capacity equal to 9 imperial gallons