What Is This Tool?
This tool allows you to convert mass values from grain (gr), a traditional small unit, to scruple (apothecary) (s.ap), a historical pharmaceutical measure, useful for understanding older prescriptions and mass comparisons in ballistics or archery.
How to Use This Tool?
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Enter the weight value in grains (gr) you wish to convert
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Select grain as the source unit and scruple (apothecary) as the target unit
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Click the convert button to see the equivalent mass in scruples
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Use the result for historical, ballistics, or archery related mass conversions
Key Features
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Converts weight from grain to apothecary scruple efficiently
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Based on exact conversion: 1 Grain = 0.05 Scruple (apothecary)
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Supports use cases in historical pharmacy and ballistics
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Browser-based and easy to operate
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Helps interpret archival pharmaceutical and medical data
Examples
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Convert 10 Grain [gr]: 10 × 0.05 = 0.5 Scruple (apothecary) [s.ap]
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Convert 40 Grain [gr]: 40 × 0.05 = 2 Scruples (apothecary) [s.ap]
Common Use Cases
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Translating historical medical prescriptions using apothecary units
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Analyzing archival pharmaceutical or botanical formulations
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Converting bullet or arrow weights from grain to scruple for comparison
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Educational purposes in understanding traditional weight units
Tips & Best Practices
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Double-check unit selection before converting to avoid errors
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Use the tool mainly for historical, archival, or analytical contexts
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Be aware of rounding as historical standards vary
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Verify converted values for precision if used in detailed research
Limitations
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Scruple is an outdated unit rarely used in modern practice
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Conversion relevance is limited to archival, educational, or analysis work
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Precision may vary due to historical measurement differences
Frequently Asked Questions
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What is a grain in weight measurement?
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A grain (gr) is a traditional unit of mass exactly equal to 64.79891 milligrams, commonly used for small weights like bullets and arrows.
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Why convert grain to scruple (apothecary)?
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This conversion helps interpret older pharmaceutical dosages and archival medical data that use apothecary units.
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Is the scruple still in common use today?
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No, the scruple is a historical weight unit largely replaced by modern metric units and mainly important in archival and scholarly contexts.
Key Terminology
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Grain [gr]
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A traditional unit of mass equal to 64.79891 milligrams, used especially in ballistics and some apothecary contexts.
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Scruple (apothecary) [s.ap]
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A historical unit of mass equal to 20 grains, used in pharmacy and medicine to measure ingredient amounts in older prescriptions.