Convert Atomic Mass Unit to Troy Ounce
Convert atomic mass unit to troy ounces instantly. 1 atomic mass unit = 5.338761e-26 troy ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Troy Ounce to Atomic Mass Unit converter for the reverse conversion.
Units explained
Atomic Mass Unit
One unified atomic mass unit (u) is defined as 1/12 the mass of a carbon-12 atom, about 1.6605E-27 kg.
Introduced to give atomic and molecular masses convenient numerical values.
Atomic, molecular, and nuclear physics and chemistry.
The unified (carbon-12) scale was adopted by IUPAC and IUPAP in 1960-1961.
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.
Atomic Mass Unit to Troy Ounce conversion formula
The relationship between atomic mass unit and troy ounces:
To convert atomic mass unit to troy ounces, multiply the value in atomic mass unit by 5.338761e-26. To reverse, multiply troy ounces by 1.873094e+25.
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 Atomic Mass Unit converter for the reverse direction.
Step-by-step: convert atomic mass unit to troy ounces
- Write down the value in atomic mass unit (u).
- Multiply that value by the factor 5.338761e-26.
- The product is the equivalent value in troy ounces (oz t).
- To reverse, multiply the troy ounce value by 1.873094e+25.
Worked examples
Example 1 — Convert 1 u to oz t:
1 × 5.338761e-26 = 5.338761e-26 oz t
Example 2 — Convert 100 u to oz t:
100 × 5.338761e-26 = 5.338761e-24 oz t
Real-world example — From wavelengths to millimeter-scale objects
A value of one million atomic mass unit sounds vast at the atomic scale but converts to a small everyday quantity in troy ounces — useful when relating optical-wavelength specifications to physical mounting hardware.
1000000 u × 5.338761e-26 = 5.338761e-20 oz t
Real-world example — Sub-micron to millimeter
500,000 atomic mass unit converts to a small everyday quantity in troy ounces — useful when relating optical-wavelength specifications to physical mounting hardware.
500000 u × 5.338761e-26 = 2.66938e-20 oz t
Atomic Mass Unit to Troy Ounce conversion table
Standard reference values for converting atomic mass unit to troy ounces:
| Atomic Mass Unit [u] | Troy Ounce [oz t] |
|---|---|
| 0.01 | 5.338761e-28 |
| 0.1 | 5.338761e-27 |
| 1 | 5.338761e-26 |
| 2 | 1.067752e-25 |
| 3 | 1.601628e-25 |
| 4 | 2.135504e-25 |
| 5 | 2.66938e-25 |
| 10 | 5.338761e-25 |
| 20 | 1.067752e-24 |
| 30 | 1.601628e-24 |
| 40 | 2.135504e-24 |
| 50 | 2.66938e-24 |
| 100 | 5.338761e-24 |
| 500 | 2.66938e-23 |
| 1000 | 5.338761e-23 |
Frequently asked questions
How many troy ounces is 1 atomic mass unit?
How do I convert atomic mass unit to troy ounces?
How do I convert troy ounces back to atomic mass unit?
How many troy ounces is 100 atomic mass unit?
Popular weight unit conversions
Convert Atomic Mass Unit to other weight units
Show all Atomic Mass Unit conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (8 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 u = 5.338761e-26 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 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.