Convert Pound (troy/apothecary) to Stone (UK)
Convert pounds (troy/apothecary) to stones (uk) instantly. 1 pound (troy/apothecary) = 0.0587755102 stone (uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Stone (UK) 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Historical pricing of precious metals; now largely superseded by the troy ounce.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.
Stone (UK)
The UK stone (st) equals 14 pounds, about 6.35 kilograms.
From standardized market 'stones' once used for weighing goods.
Body weight in the United Kingdom and Ireland.
Fixed at 14 pounds by British statute in 1835.
Pound (troy/apothecary) to Stone (UK) conversion formula
The relationship between pounds (troy/apothecary) and stones (uk):
To convert pounds (troy/apothecary) to stones (uk), multiply the value in pounds (troy/apothecary) by 0.0587755102. To reverse, multiply stones (uk) by 17.0138888889.
How to use this converter
Type a value into the calculator. The result in stones (uk) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Stone (UK) to Pound (troy/apothecary) converter for the reverse direction.
Step-by-step: convert pounds (troy/apothecary) to stones (uk)
- Write down the value in pounds (troy/apothecary) (lb t).
- Multiply that value by the factor 0.0587755102.
- The product is the equivalent value in stones (uk) (st).
- To reverse, multiply the stone (uk) value by 17.0138888889.
Worked examples
Example 1 — Convert 1 lb t to st:
1 × 0.0587755102 = 0.0587755102 st
Example 2 — Convert 100 lb t to st:
100 × 0.0587755102 = 5.8775510204 st
Real-world example — Reference scenario in case of fallback
Conversion between human-scale length units is the everyday workflow of architecture, athletics, and apparel design — three of the most common contexts that span metric and imperial systems.
1 lb t × 0.0587755102 = 0.0587755102 st
Real-world example — Adult height conversion
A 1.8-pound (troy/apothecary)-tall person measures a value in stones (uk) that converts the height to the unit favoured by American forms, schools, or driver's licences. This is daily routine for anyone living between metric and imperial systems.
1.8 lb t × 0.0587755102 = 0.1057959184 st
Real-world example — Fabric purchase length
Two pounds (troy/apothecary) of fabric equals a value in stones (uk) essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 lb t × 0.0587755102 = 0.1175510204 st
Pound (troy/apothecary) to Stone (UK) conversion table
Standard reference values for converting pounds (troy/apothecary) to stones (uk):
| Pound (troy/apothecary) [lb t] | Stone (UK) [st] |
|---|---|
| 0.01 | 0.0005877551 |
| 0.1 | 0.005877551 |
| 1 | 0.0587755102 |
| 2 | 0.1175510204 |
| 3 | 0.1763265306 |
| 4 | 0.2351020408 |
| 5 | 0.293877551 |
| 10 | 0.587755102 |
| 20 | 1.1755102041 |
| 30 | 1.7632653061 |
| 40 | 2.3510204082 |
| 50 | 2.9387755102 |
| 100 | 5.8775510204 |
| 500 | 29.387755102 |
| 1000 | 58.7755102041 |
Frequently asked questions
How many stones (uk) is 1 pound (troy/apothecary)?
How do I convert pounds (troy/apothecary) to stones (uk)?
How do I convert stones (uk) back to pounds (troy/apothecary)?
How many stones (uk) 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 = 0.0587755102 st) 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.