Convert Pound (troy/apothecary) to Troy Ounce
Convert pounds (troy/apothecary) to troy ounces instantly. 1 pound (troy/apothecary) = 12 troy ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Troy Ounce 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Historical pricing of precious metals; now largely superseded by the troy ounce.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.
Troy Ounce
The troy ounce (ozt) equals about 31.103 grams, one-twelfth of a troy pound.
From the Troy system of weights associated with Troyes, France.
The global standard for pricing gold, silver, platinum, and palladium.
Established in the medieval Troy system and retained for precious metals.
Pound (troy/apothecary) to Troy Ounce conversion formula
The relationship between pounds (troy/apothecary) and troy ounces:
To convert pounds (troy/apothecary) to troy ounces, multiply the value in pounds (troy/apothecary) by 12. To reverse, multiply troy ounces by 0.0833333333.
How to use this converter
Type a value into the calculator. The result in troy ounces updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Troy Ounce to Pound (troy/apothecary) converter for the reverse direction.
Step-by-step: convert pounds (troy/apothecary) to troy ounces
- Write down the value in pounds (troy/apothecary) (lb t).
- Multiply that value by the factor 12.
- The product is the equivalent value in troy ounces (oz t).
- To reverse, multiply the troy ounce value by 0.0833333333.
Worked examples
Example 1 — Convert 1 lb t to oz t:
1 × 12 = 12 oz t
Example 2 — Convert 100 lb t to oz t:
100 × 12 = 1200 oz t
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 troy ounces. This is the most-used everyday length conversion in metric-using countries.
1.75 lb t × 12 = 21 oz t
Real-world example — Pet and accessory dimensions
A 3-pound (troy/apothecary) dog leash equals a tidy round value in troy ounces. Pet-supply shopping frequently mixes the two units across product specifications.
3 lb t × 12 = 36 oz t
Real-world example — Fabric and tailoring
One pound (troy/apothecary) of fabric converts to a value in troy ounces commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.
1 lb t × 12 = 12 oz t
Pound (troy/apothecary) to Troy Ounce conversion table
Standard reference values for converting pounds (troy/apothecary) to troy ounces:
| Pound (troy/apothecary) [lb t] | Troy Ounce [oz t] |
|---|---|
| 0.01 | 0.12 |
| 0.1 | 1.2 |
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 10 | 120 |
| 20 | 240 |
| 30 | 360 |
| 40 | 480 |
| 50 | 600 |
| 100 | 1200 |
| 500 | 6000 |
| 1000 | 12000 |
Frequently asked questions
How many troy ounces is 1 pound (troy/apothecary)?
How do I convert pounds (troy/apothecary) to troy ounces?
How do I convert troy ounces back to pounds (troy/apothecary)?
How many troy ounces 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 = 12 oz t) 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.