# Grams to Scruples (g to s ap) Source: https://www.unitconvertercalculator.com/weight/grams-to-scruples/ **1 g = 0.77161791764707 s ap** One gram equals approximately 0.7716 scruples. The scruple (about 1.296 grams) was the apothecary's precision unit for compounding medicines until the mid-20th century. At roughly three-quarters of a scruple per gram, the conversion reflects how close the two units are in scale - close enough that the scruple could have been a reasonable metric unit if history had gone slightly differently. ## Formula Apply the conversion factor ## Conversion Table | Grams (g) | Scruples (s ap) | |---|---| | 0.5 g | 0.38580895882354 s ap | | 1 g | 0.77161791764707 s ap | | 2 g | 1.5432358352941 s ap | | 5 g | 3.8580895882354 s ap | | 10 g | 7.7161791764707 s ap | | 20 g | 15.432358352941 s ap | | 25 g | 19.290447941177 s ap | | 50 g | 38.580895882354 s ap | | 100 g | 77.161791764707 s ap | | 200 g | 154.32358352941 s ap | | 250 g | 192.90447941177 s ap | | 500 g | 385.80895882354 s ap | | 1000 g | 771.61791764707 s ap | | 5000 g | 3858.0895882354 s ap | | 10000 g | 7716.1791764707 s ap | ## Units ### Gram (g) A metric unit of mass equal to one thousandth of a kilogram. Widely used in cooking, nutrition labeling, and science. ### Scruple (s ap) An apothecary scruple equals 20 grains or 1/3 of a dram apothecary (1.2959782 grams). A historical pharmaceutical unit largely replaced by metric measurements. ## Background A Victorian prescription for 'one scruple of quinine' meant about 1.296 grams of the antimalarial compound. A modern pharmacist encountering this prescription would convert to 1,296 milligrams using the gram as an intermediate step. The scruple-gram proximity (about 1.3 grams per scruple) made the transition from apothecary to metric measurement relatively smooth. ## Good to Know The gram was originally defined as the mass of one cubic centimeter of water at 4 degrees Celsius - an elegant connection between length, volume, and mass that was a founding principle of the metric system. Though the kilogram was redefined using the Planck constant in 2019, the gram retains its intuitive water relationship: one milliliter of water weighs approximately one gram, a fact that makes metric cooking and chemistry beautifully simple. ## FAQ ### How many scruples are in one gram? One gram equals approximately 0.7716 scruples. Conversely, one scruple is about 1.296 grams. ### Is the scruple still used anywhere? No. Pharmacy worldwide has switched to milligrams and grams. The scruple survives only in historical pharmaceutical texts and as a common English word meaning moral hesitation. ### Why is a gram close to one scruple? Coincidence. The scruple (20 grains, about 1.296 grams) and the gram (defined from water density) were created independently. Their near-equivalence simplified the metric transition for pharmacists who already had intuition for scruple-sized doses. ## Non-Frequently Asked Questions ### Did the near-equivalence of grams and scruples help pharmacy adopt metric? Probably. A pharmacist accustomed to measuring 'one scruple' of a drug could switch to '1.3 grams' without dramatically changing their mental model of what a dose looks like. If a scruple had been 10 grams or 0.1 grams, the conceptual leap would have been much harder. The accident of scale similarity eased a major professional transition. ### Is the word 'scruple' more useful as a moral concept or a weight unit? As a moral concept, by a wide margin. Every English speaker understands 'having scruples' (moral hesitation). Virtually nobody uses 'scruple' as a weight. The word's survival in ethics while dying in pharmacy is one of the most successful career pivots in the history of the English language. ### How many grams of conscience does an ethical person have? If we (playfully) equate moral scruples with weight scruples, a person of 'great scruples' might have 10 scruples of conscience - about 12.96 grams. A person with 'no scruples' has zero grams of moral weight. 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