Convert Pound (troy/apothecary) to Scruple (apothecary)
Convert pounds (troy/apothecary) to scruples (apothecary) instantly. 1 pound (troy/apothecary) = 288 scruple (apothecary) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Scruple (apothecary) to Pound (troy/apothecary) converter for the reverse conversion.
Units explained
Pound (troy/apothecary)
The troy (apothecary) pound equals 12 troy ounces, about 373.24 grams.
Named for Troyes, France, a major medieval trade-fair town.
Historical pricing of precious metals; now largely superseded by the troy ounce.
Adopted as the English coinage standard under Henry VIII in 1528.
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.
Pound (troy/apothecary) to Scruple (apothecary) conversion formula
The relationship between pounds (troy/apothecary) and scruples (apothecary):
To convert pounds (troy/apothecary) to scruples (apothecary), multiply the value in pounds (troy/apothecary) by 288. To reverse, multiply scruples (apothecary) by 0.0034722222.
How to use this converter
Type a value into the calculator. The result in scruples (apothecary) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Scruple (apothecary) to Pound (troy/apothecary) converter for the reverse direction.
Step-by-step: convert pounds (troy/apothecary) to scruples (apothecary)
- Write down the value in pounds (troy/apothecary) (lb t).
- Multiply that value by the factor 288.
- The product is the equivalent value in scruples (apothecary) (s ap).
- To reverse, multiply the scruple (apothecary) value by 0.0034722222.
Worked examples
Example 1 — Convert 1 lb t to s ap:
1 × 288 = 288 s ap
Example 2 — Convert 100 lb t to s ap:
100 × 288 = 28800 s ap
Real-world example — Pet and accessory dimensions
A 3-pound (troy/apothecary) dog leash equals a tidy round value in scruples (apothecary). Pet-supply shopping frequently mixes the two units across product specifications.
3 lb t × 288 = 864 s ap
Real-world example — Fabric and tailoring
One pound (troy/apothecary) of fabric converts to a value in scruples (apothecary) commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.
1 lb t × 288 = 288 s ap
Real-world example — Body height conversion (reverse direction)
You measure 1.75 pounds (troy/apothecary) tall and need to fill in a gym membership form or medical record that asks for height in scruples (apothecary). This is the most-used everyday length conversion in metric-using countries.
1.75 lb t × 288 = 504 s ap
Pound (troy/apothecary) to Scruple (apothecary) conversion table
Standard reference values for converting pounds (troy/apothecary) to scruples (apothecary):
| Pound (troy/apothecary) [lb t] | Scruple (apothecary) [s ap] |
|---|---|
| 0.01 | 2.88 |
| 0.1 | 28.8 |
| 1 | 288 |
| 2 | 576 |
| 3 | 864 |
| 4 | 1152 |
| 5 | 1440 |
| 10 | 2880 |
| 20 | 5760 |
| 30 | 8640 |
| 40 | 11520 |
| 50 | 14400 |
| 100 | 28800 |
| 500 | 144000 |
| 1000 | 288000 |
Frequently asked questions
How many scruples (apothecary) is 1 pound (troy/apothecary)?
How do I convert pounds (troy/apothecary) to scruples (apothecary)?
How do I convert scruples (apothecary) back to pounds (troy/apothecary)?
How many scruples (apothecary) is 100 pounds (troy/apothecary)?
Popular weight unit conversions
Convert Pound (troy/apothecary) to other weight units
Show all Pound (troy/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 lb t = 288 s ap) 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.