Convert Troy Ounce to Ounce
Convert troy ounces to ounces instantly. 1 troy ounce = 1.0971428581 ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ounce to Troy Ounce converter for the reverse conversion.
Units explained
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.
Ounce
The (avoirdupois) ounce (oz) equals one-sixteenth of a pound, about 28.35 grams.
From Latin 'uncia', meaning a twelfth part.
US food portions, postal weights, and boxing weight classes.
Standardized as 1/16 of the international pound from 1959.
Troy Ounce to Ounce conversion formula
The relationship between troy ounces and ounces:
To convert troy ounces to ounces, multiply the value in troy ounces by 1.0971428581. To reverse, multiply ounces by 0.9114583325.
How to use this converter
Type a value into the calculator. The result in 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 Ounce to Troy Ounce converter for the reverse direction.
Step-by-step: convert troy ounces to ounces
- Write down the value in troy ounces (oz t).
- Multiply that value by the factor 1.0971428581.
- The product is the equivalent value in ounces (oz).
- To reverse, multiply the ounce value by 0.9114583325.
Worked examples
Example 1 — Convert 1 oz t to oz:
1 × 1.0971428581 = 1.0971428581 oz
Example 2 — Convert 100 oz t to oz:
100 × 1.0971428581 = 109.714285811 oz
Real-world example — Hardware-scale dimensions
A 10-troy ounce fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between troy ounces and ounces daily when mixing metric and imperial tools.
10 oz t × 1.0971428581 = 10.9714285811 oz
Real-world example — Postcard and small-object dimensions
A postcard is about 5 troy ounces wide. Converting to ounces is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 oz t × 1.0971428581 = 5.4857142906 oz
Real-world example — Ruler-scale measurements
A 30-troy ounce school ruler converts cleanly to ounces — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 oz t × 1.0971428581 = 32.9142857433 oz
Troy Ounce to Ounce conversion table
Standard reference values for converting troy ounces to ounces:
| Troy Ounce [oz t] | Ounce [oz] |
|---|---|
| 0.01 | 0.0109714286 |
| 0.1 | 0.1097142858 |
| 1 | 1.0971428581 |
| 2 | 2.1942857162 |
| 3 | 3.2914285743 |
| 4 | 4.3885714324 |
| 5 | 5.4857142906 |
| 10 | 10.9714285811 |
| 20 | 21.9428571622 |
| 30 | 32.9142857433 |
| 40 | 43.8857143244 |
| 50 | 54.8571429055 |
| 100 | 109.714285811 |
| 500 | 548.5714290552 |
| 1000 | 1097.1428581104 |
Frequently asked questions
How many ounces is 1 troy ounce?
How do I convert troy ounces to ounces?
How do I convert ounces back to troy ounces?
How many ounces is 100 troy ounces?
Popular weight unit conversions
Convert Troy Ounce to other weight units
Show all Troy Ounce 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 oz t = 1.0971428581 oz) 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.