Convert Catties to Apothecary Drams
Convert Catties (catty) to Apothecary Drams (dr ap) instantly and accurately.
Conversion Formula
dr ap = catty × 155.3524074
About Catties
The catty (also jin 斤 in Chinese) is a traditional unit of mass used across East and Southeast Asia, equal to 600 grams in its modern metric form. It was historically the standard unit of trade for goods at markets throughout China, Japan, Korea, and Southeast Asia for over a thousand years. Today the catty remains widely used in Chinese, Vietnamese, Malaysian, and Singaporean wet markets and grocery stores for weighing vegetables, meat, and fish. In Hong Kong, the catty (斤) is precisely 604.79 grams; in mainland China it is exactly 500 grams (half a kilogram).
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
| Catties (catty) | Apothecary Drams (dr ap) |
|---|---|
| 1 catty | 155.352 dr ap |
| 2 catty | 310.705 dr ap |
| 5 catty | 776.762 dr ap |
| 10 catty | 1553.52 dr ap |
| 25 catty | 3883.81 dr ap |
| 50 catty | 7767.62 dr ap |
| 100 catty | 15535.2 dr ap |