Convert Milligrams to Troy Ounces
Convert Milligrams (mg) to Troy Ounces (ozt) instantly and accurately.
Conversion Formula
ozt = mg × 3.215074657e-5
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 Troy Ounces
The troy ounce (ozt or oz t) is the global standard for weighing and pricing precious metals - gold, silver, platinum, and palladium. Equal to 31.1034768 grams (about 10% heavier than the avoirdupois ounce), it originates from the medieval fair at Troyes, France, where a standardised weight system facilitated international trade. All gold spot prices quoted on financial markets (LBMA, COMEX, MCX) are priced per troy ounce. A standard 'Good Delivery' gold bar approved by the London Bullion Market Association weighs approximately 400 troy ounces (12.4 kg).
Quick Reference Table
| Milligrams (mg) | Troy Ounces (ozt) |
|---|---|
| 1 mg | 3.215 × 10-5 ozt |
| 2 mg | 6.43 × 10-5 ozt |
| 5 mg | 0.000160754 ozt |
| 10 mg | 0.000321507 ozt |
| 25 mg | 0.000803769 ozt |
| 50 mg | 0.00160754 ozt |
| 100 mg | 0.00321507 ozt |