Dram conversions

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Convert drams to

The dram conversion selector on this page selects the mass/weight measurement unit to convert to starting from drams (dr). To make a conversion starting from a unit of mass other than dram, simply click on the "Reset" button.

What is dram?

The dram is a unit of mass in the US customary system of units equal to about 0.001771845 kilograms (1 dr = 0.001771845 kg), the base unit of mass in the International System of Units (SI). It is also equal to about 1.771845 grams (g) or 1,771.845 milligrams (mg) (SI units of mass), or 0.00390624 pounds (lb) or 0.0625 ounces (oz), which are US customary / Imperial units of mass.

Over time, various drams and variations on the drams have been recorded. Examples of dram units include:

  • The Greek drachm, equal to about 4.37 grams (g) or 67.439406 grains (gr)
  • The Roman drachm, equal to about 3.41 grams (g) or 52.624342 grains (gr)
  • The Apothecaries' dram, equal to 3.8879346 grams (g) or 60 grains (gr)




Also called:

drachm (plural: drachms, symbol: dr, the Imperial system of units)