# Drams to Centigrams (dr to cg) Source: https://www.unitconvertercalculator.com/weight/drams-to-centigrams/ **1 dr = 177.18451953125 cg** One dram equals approximately 177.18 centigrams. The avoirdupois dram (about 1.772 grams) converts cleanly to centigrams because the centigram (0.01 grams) divides neatly into the dram's gram value. This conversion bridges an obsolete English trading unit with a seldom-used metric sub-unit, creating a meeting of two measurement system outcasts. ## Formula Apply the conversion factor ## Conversion Table | Drams (dr) | Centigrams (cg) | |---|---| | 0.1 dr | 17.718451953125 cg | | 0.25 dr | 44.296129882813 cg | | 0.5 dr | 88.592259765625 cg | | 1 dr | 177.18451953125 cg | | 2 dr | 354.3690390625 cg | | 5 dr | 885.92259765625 cg | | 10 dr | 1771.8451953125 cg | | 16 dr | 2834.9523125 cg | | 25 dr | 4429.6129882813 cg | | 50 dr | 8859.2259765625 cg | | 100 dr | 17718.451953125 cg | | 256 dr | 45359.237 cg | | 500 dr | 88592.259765625 cg | | 1000 dr | 177184.51953125 cg | ## Units ### Dram (dr) A dram (avoirdupois) is a unit of mass equal to 1/16 of an ounce or 1/256 of a pound (1.7718451953125 grams). Historically used in pharmacy and old cooking recipes. ### Centigram (cg) A centigram is one hundredth of a gram. It is a metric unit rarely used in everyday life but appears in some scientific and educational contexts. ## Background A dram of ground black pepper weighs about 177 centigrams. Historical spice merchants who sold pepper by the dram were dealing in quantities that modern chemists might express as 177 centigrams on a laboratory balance. Neither unit is standard today - pepper is now sold by the gram or ounce, and centigrams appear mainly in textbooks. ## Good to Know The centigram and the dram share the fate of being 'technically valid but practically abandoned.' The centigram was born into redundancy - milligrams and grams covered its range already. The dram was born into utility but outlived its era. One never had a purpose; the other lost its purpose. Their conversion is the mathematical handshake of two units passing each other on the way to obscurity. ## FAQ ### How many centigrams are in one dram? One avoirdupois dram equals approximately 177.18 centigrams. This comes from 1 dram being about 1.7718 grams and 1 centigram being 0.01 grams. ### Is either unit commonly used today? Neither is standard in modern practice. The dram survives in a few American cooking references and ammunition contexts. The centigram is largely absent from everyday measurement, overshadowed by milligrams and grams. ### What was the dram used for historically? The avoirdupois dram was used for weighing spices, small trade goods, and some pharmaceutical ingredients in British and American commerce from the medieval period through the early 20th century. ## Non-Frequently Asked Questions ### Are drams and centigrams the measurement world's forgotten couple? They might be the least popular pair in any conversion table. The dram is obsolete in most contexts. The centigram is ignored in most contexts. Their conversion factor of 177.18 is known to essentially nobody. Together they form a conversion that exists purely because comprehensive tables demand it. ### If a Victorian spice merchant met a modern chemist, could they agree on 177 centigrams? The merchant would say 'one dram of nutmeg.' The chemist would say '1,772 milligrams of myristicin-containing material.' Neither would naturally say '177 centigrams' because neither culture ever adopted that unit. They would need a translator not for language but for measurement systems. ### Is 177.18 the most forgettable conversion factor in this table? It faces stiff competition. But 177.18 centigrams per dram has the unique distinction of connecting two units that nobody champions. Other obscure conversions at least involve one popular unit (grams, pounds, ounces). 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