Scruples to Carats (s ap to ct) Converter
1 Scruple equals 6.4799 Carats (1 s ap = 6.4799 ct). Convert Scruples to Carats with formula, table, and examples.
One scruple equals approximately 6.48 carats. The scruple, an apothecary weight of 20 grains (about 1.296 grams), and the carat, the gemstone standard of exactly 0.2 grams, both belong to the world of small, precise measurements. Their conversion links pharmaceutical history with gemological practice.
How to Convert Scruples to Carats
- Take your value in Scruples
- Multiply by 6.479891
- Read the result in Carats
Common Scruples to Carats Conversions
| Scruples (s ap) | Carats (ct) | Status |
|---|---|---|
| 0.5 s ap | 3.2399 ct | |
| 1 s ap | 6.4799 ct | |
| 3 s ap | 19.4397 ct | |
| 5 s ap | 32.3995 ct | |
| 10 s ap | 64.7989 ct | |
| 20 s ap | 129.5978 ct | |
| 24 s ap | 155.5174 ct | |
| 50 s ap | 323.9946 ct | |
| 100 s ap | 647.9891 ct | |
| 200 s ap | 1,295.9782 ct | |
| 288 s ap | 1,866.2086 ct | |
| 500 s ap | 3,239.9455 ct | |
| 1,000 s ap | 6,479.891 ct |
Good to Know About Scruples to Carats Conversion
The scruple-carat intersection reveals one of history's more unusual medical practices: gem therapy. From ancient Rome through the European Renaissance, physicians prescribed crushed gemstones as medicines, believing that the beauty and rarity of gems translated to healing power. The scruple was the pharmacist's measuring unit for these expensive ingredients, making each dose a literal investment in a patient's health.
Scruples to Carats: What You Need to Know
Historical alchemical texts occasionally describe gemstone preparations measured in scruples, where crushed or powdered gems were incorporated into medicinal formulations. Renaissance apothecaries compounding 'gem elixirs' would have weighed their ruby or sapphire powder in scruples. Modern gemological historians studying these old recipes need the scruple-to-carat conversion to understand what quantities were actually being used.
What is a 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.
Learn more about Scruple →What is a Carat? ct
A carat is a unit of mass equal to exactly 200 milligrams (0.2 grams), used for measuring gemstones and pearls. Adopted internationally in 1907 by the Fourth General Conference on Weights and Measures.
Learn more about Carat →Going the other way? Use our Carats to Scruples converter.
Scruples to Carats FAQ
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In Renaissance alchemy and early modern medicine, crushed gemstones used in pharmaceutical preparations were sometimes weighed in scruples. This practice reflected the belief that gemstones had medicinal properties. The carat system for intact gems existed simultaneously but served the jewelry trade rather than the apothecary.
Non-Frequently Asked Questions About Scruples to Carats
Questions nobody should ask - but someone did.
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They absolutely did. Powdered rubies, emeralds, pearls, and sapphires appeared in pharmacopeias across Europe and Asia for centuries. A typical dose might be half a scruple (about 3.24 carats) of powdered pearl mixed with wine. Whether this cured anything is highly questionable, but it certainly raised the cost of prescriptions.
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If moral scruples converted to gemstone carats at the same rate as apothecary scruples, one scruple of doubt would equal 6.48 carats of hesitation. That is a respectably sized ethical dilemma, roughly the equivalent of a large solitaire ring's worth of second thoughts. Most committee meetings generate considerably more.
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A modern jeweler would be thoroughly confused, as scruples vanished from pharmaceutical practice decades ago and were never standard in the gem trade. You would need to visit a Renaissance fair or a very specialized antique pharmacy museum to find anyone who could weigh gemstones in scruples with a straight face.
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Need the reverse? Use our Carats to Scruples converter. See all Weight & Mass converters.