Dram
dr
The dram is another venerable imperial unit with historical roots in apothecary measurements. While less common today, it still appears in pharmaceutical contexts and historical recipes.
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Dram (dr)
The dram is another venerable imperial unit with historical roots in apothecary measurements. While less common today, it still appears in pharmaceutical contexts and historical recipes.
Characteristics
- Imperial system unit
- 1 dram = 1/16 ounce
- 1 dram = 1,771.8452 milligrams
- Historic use: apothecary measurements for medicines
- Also called: avoirdupois dram (to distinguish from troy dram)
Conversions
- 1 dr = 1/16 oz
- 1 dr = 1771.8452 mg
- 1 dr = 1.7718452 g
- 1 dr = 27.3438 grains
- 16 drams = 1 ounce
- 256 drams = 1 pound