Convert Troy Ounce to Ton (assay) (US)
Convert troy ounces to tons (assay) (us) instantly. 1 troy ounce = 1.066404797 ton (assay) (us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (assay) (US) 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.
Ton (assay) (US)
The assay ton (US) equals about 29.167 grams, a mining-assay convenience unit.
Devised so an assay sample's metal in milligrams reads as troy ounces per short ton.
Ore assaying and metallurgy.
Adopted in assay laboratories to simplify ore-grade calculation.
Troy Ounce to Ton (assay) (US) conversion formula
The relationship between troy ounces and tons (assay) (us):
To convert troy ounces to tons (assay) (us), multiply the value in troy ounces by 1.066404797. To reverse, multiply tons (assay) (us) by 0.9377302154.
How to use this converter
Type a value into the calculator. The result in tons (assay) (us) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ton (assay) (US) to Troy Ounce converter for the reverse direction.
Step-by-step: convert troy ounces to tons (assay) (us)
- Write down the value in troy ounces (oz t).
- Multiply that value by the factor 1.066404797.
- The product is the equivalent value in tons (assay) (us) (AT).
- To reverse, multiply the ton (assay) (us) value by 0.9377302154.
Worked examples
Example 1 — Convert 1 oz t to AT:
1 × 1.066404797 = 1.066404797 AT
Example 2 — Convert 100 oz t to AT:
100 × 1.066404797 = 106.6404796982 AT
Real-world example — Ruler-scale measurements
A 30-troy ounce school ruler converts cleanly to tons (assay) (us) — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 oz t × 1.066404797 = 31.9921439095 AT
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 tons (assay) (us) daily when mixing metric and imperial tools.
10 oz t × 1.066404797 = 10.6640479698 AT
Real-world example — Postcard and small-object dimensions
A postcard is about 5 troy ounces wide. Converting to tons (assay) (us) is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 oz t × 1.066404797 = 5.3320239849 AT
Troy Ounce to Ton (assay) (US) conversion table
Standard reference values for converting troy ounces to tons (assay) (us):
| Troy Ounce [oz t] | Ton (assay) (US) [AT] |
|---|---|
| 0.01 | 0.010664048 |
| 0.1 | 0.1066404797 |
| 1 | 1.066404797 |
| 2 | 2.132809594 |
| 3 | 3.1992143909 |
| 4 | 4.2656191879 |
| 5 | 5.3320239849 |
| 10 | 10.6640479698 |
| 20 | 21.3280959396 |
| 30 | 31.9921439095 |
| 40 | 42.6561918793 |
| 50 | 53.3202398491 |
| 100 | 106.6404796982 |
| 500 | 533.2023984912 |
| 1000 | 1066.4047969823 |
Frequently asked questions
How many tons (assay) (us) is 1 troy ounce?
How do I convert troy ounces to tons (assay) (us)?
How do I convert tons (assay) (us) back to troy ounces?
How many tons (assay) (us) 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 = 1.066404797 AT) 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.