Convert Dram (dr) to Fluid Ounce (UK) (fl oz (UK)) instantly.
About these units
Dram (dr)
The fluid dram is a small historical unit equal to 1/8 of a US fluid ounce or 3.6967 mL (US), with slightly different imperial values. It originated in apothecaries and early pharmaceutical texts, where drams measured potent liquid medicines, tinctures, and extracts. In daily life, drams appeared in old cocktail recipes, medicinal syrups, and household remedies. However, the inconsistency between US and UK drams, along with the rise of the metric system, pushed it out of modern use. Today, the dram survives mostly in whiskey culture—where a "dram" informally means a small pour, not a precise measurement—and in historical studies of medicine.
Fluid Ounce (UK) (fl oz (UK))
A UK fluid ounce equals 28.4130625 mL, slightly larger than the US fluid ounce. It forms part of the imperial system used in cooking, beverage preparation, and older pharmaceutical formulations. Imperial fluid ounces were historically derived from the UK gallon (1/160 of a gallon), distinguishing them from US units derived from a different gallon. Though metric units dominate in the UK today, fluid ounces still appear in bartending, antique recipes, and product packaging that caters to traditional preferences or legacy export markets.