Convert Stones to Apothecary Drams
Convert Stones (st) to Apothecary Drams (dr ap) instantly and accurately.
Conversion Formula
dr ap = st × 1633.333333
About Stones
A stone (st) equals 14 pounds or approximately 6.350 kg. It is the standard unit for expressing human body weight in the United Kingdom and Ireland, where a person will say they weigh '11 stone 4' (meaning 11 stone and 4 pounds, or 158 lb / 71.7 kg). Despite the UK's official adoption of the metric system, stones remain the dominant unit for personal body weight on British bathroom scales, in doctors' offices, and in everyday conversation. British newspapers and sports reports routinely describe athletes' weights in stones and pounds.
About Apothecary Drams
An apothecary dram (dr ap) equals 3 scruples or 60 grains - approximately 3.888 grams. Part of the traditional apothecary system used by physicians and pharmacists from the Middle Ages through the 19th century, it was the standard unit for prescribing and dispensing medicines. Prescriptions written in the apothecary system used special symbols: the dram symbol (℈) and ounce symbol (℥) appear throughout historical medical records and old pharmacy ledgers. The apothecary dram differs from the fluid dram (a volume unit) and from the avoirdupois dram.
Quick Reference Table
| Stones (st) | Apothecary Drams (dr ap) |
|---|---|
| 1 st | 1633.33 dr ap |
| 2 st | 3266.67 dr ap |
| 5 st | 8166.67 dr ap |
| 10 st | 16333.3 dr ap |
| 25 st | 40833.3 dr ap |
| 50 st | 81666.7 dr ap |
| 100 st | 163333 dr ap |