Convert Milligrams to Scruples
Convert Milligrams (mg) to Scruples (s ap) instantly and accurately.
Conversion Formula
s ap = mg × 0.0007716179176
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.
About Scruples
A scruple (s ap) is a unit of the apothecary weight system equal to 20 grains or approximately 1.296 grams. Derived from the Latin 'scrupulus' (a small sharp stone used as a counterweight), it was the basic dispensing unit in pre-metric pharmacy across Europe. The apothecary system divided the fluid ounce into 8 drams, each dram into 3 scruples, and each scruple into 20 grains - a hierarchy memorised by every 19th-century pharmacist.
Quick Reference Table
| Milligrams (mg) | Scruples (s ap) |
|---|---|
| 1 mg | 0.000771618 s ap |
| 2 mg | 0.00154324 s ap |
| 5 mg | 0.00385809 s ap |
| 10 mg | 0.00771618 s ap |
| 25 mg | 0.0192904 s ap |
| 50 mg | 0.0385809 s ap |
| 100 mg | 0.0771618 s ap |