Convert Scruple (apothecary) to Slug
Convert scruples (apothecary) to slugs instantly. 1 scruple (apothecary) = 8.880271e-5 slug — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Slug to Scruple (apothecary) converter for the reverse conversion.
Units explained
Scruple (apothecary)
The apothecary scruple equals 20 grains, about 1.296 grams.
From Latin 'scrupulus', a small sharp pebble used as a tiny weight.
Historical apothecary dosing of powders.
Part of the apothecaries' system used through the 19th century.
Slug
The slug is the mass that accelerates at 1 ft/s^2 under a force of one pound-force, about 14.59 kg.
Coined in the early 20th century for the British gravitational (engineering) system.
US and British engineering dynamics.
Introduced in the British gravitational system of units.
Scruple (apothecary) to Slug conversion formula
The relationship between scruples (apothecary) and slugs:
To convert scruples (apothecary) to slugs, multiply the value in scruples (apothecary) by 8.880271e-5. To reverse, multiply slugs by 11260.9169947457.
How to use this converter
Type a value into the calculator. The result in slugs updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Slug to Scruple (apothecary) converter for the reverse direction.
Step-by-step: convert scruples (apothecary) to slugs
- Write down the value in scruples (apothecary) (s ap).
- Multiply that value by the factor 8.880271e-5.
- The product is the equivalent value in slugs (slug).
- To reverse, multiply the slug value by 11260.9169947457.
Worked examples
Example 1 — Convert 1 s ap to slug:
1 × 8.880271e-5 = 8.880271e-5 slug
Example 2 — Convert 100 s ap to slug:
100 × 8.880271e-5 = 0.0088802715 slug
Real-world example — Postcard and small-object dimensions
A postcard is about 5 scruples (apothecary) wide. Converting to slugs is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 s ap × 8.880271e-5 = 0.0004440136 slug
Real-world example — Ruler-scale measurements
A 30-scruple (apothecary) school ruler converts cleanly to slugs — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 s ap × 8.880271e-5 = 0.0026640814 slug
Real-world example — Hardware-scale dimensions
A 10-scruple (apothecary) fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between scruples (apothecary) and slugs daily when mixing metric and imperial tools.
10 s ap × 8.880271e-5 = 0.0008880271 slug
Scruple (apothecary) to Slug conversion table
Standard reference values for converting scruples (apothecary) to slugs:
| Scruple (apothecary) [s ap] | Slug [slug] |
|---|---|
| 0.01 | 8.880271e-7 |
| 0.1 | 8.880271e-6 |
| 1 | 8.880271e-5 |
| 2 | 0.0001776054 |
| 3 | 0.0002664081 |
| 4 | 0.0003552109 |
| 5 | 0.0004440136 |
| 10 | 0.0008880271 |
| 20 | 0.0017760543 |
| 30 | 0.0026640814 |
| 40 | 0.0035521086 |
| 50 | 0.0044401357 |
| 100 | 0.0088802715 |
| 500 | 0.0444013574 |
| 1000 | 0.0888027148 |
Frequently asked questions
How many slugs is 1 scruple (apothecary)?
How do I convert scruples (apothecary) to slugs?
How do I convert slugs back to scruples (apothecary)?
How many slugs is 100 scruples (apothecary)?
Popular weight unit conversions
Convert Scruple (apothecary) to other weight units
Show all Scruple (apothecary) conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 s ap = 8.880271e-5 slug) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.