Convert Avoirdupois Drams to Milligrams
Convert Avoirdupois Drams (dr av) to Milligrams (mg) instantly and accurately.
Conversion Formula
mg = dr av × 1771.845195
About Avoirdupois Drams
An avoirdupois dram (dr av) is 1/16 of an avoirdupois ounce - approximately 1.772 grams. Part of the avoirdupois system that governs everyday trade weights in the UK and US, it was historically used to measure small quantities of goods and spices in commerce. While rarely used in modern commerce (having been replaced by grams in most applications), the avoirdupois dram still appears in some spice and herbalist contexts, in US gunpowder loading data (where charges are specified in grains and drams), and in archaic recipe books.
About Milligrams
A milligram (mg) is one thousandth of a gram (10⁻³ g). It is the primary unit for pharmaceutical dosing: aspirin tablets are typically 500 mg, ibuprofen 200-400 mg, and melatonin supplements 0.5-10 mg. Precious metal assay results and alloy compositions are specified in milligrams per kilogram (mg/kg = ppm). Nutritional labels worldwide list mineral content in milligrams - the recommended daily intake of iron is 8-18 mg, calcium 1000 mg, and sodium under 2300 mg. A grain of rice weighs about 25-30 mg, and a medium eyelash approximately 0.1 mg.
Quick Reference Table
| Avoirdupois Drams (dr av) | Milligrams (mg) |
|---|---|
| 1 dr av | 1771.85 mg |
| 2 dr av | 3543.69 mg |
| 5 dr av | 8859.23 mg |
| 10 dr av | 17718.5 mg |
| 25 dr av | 44296.1 mg |
| 50 dr av | 88592.3 mg |
| 100 dr av | 177185 mg |