A troy ounce is exactly 31.1034768 grams.
Troy ounces to Micrograms Converter — oz t to ug
Convert Troy ounce (oz t) to Microgram (ug) using the exact conversion factor (1 troy ounce = 31,103,476.8 microgram). See the formula, worked examples, and conversion table.
Troy ounces to Micrograms converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
Microgram is 0.000001 gram units.
Result = input x 0.0311034768 / 1e-9.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces to Micrograms
Weight conversions between Troy ounce and Microgram come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: A troy ounce is exactly 31.1034768 grams, and microgram is 0.000001 gram units.
Formula
micrograms = troy ounces × 31103476.8
This factor comes from each unit's defined relationship to the category's base unit: 1 troy ounce equals 0.0311034768 base units, and 1 microgram equals 1e-9 base units, so dividing one by the other gives the direct troy ounce-to-microgram factor of 31103476.8.
Simple example
1 oz t × 31103476.8 = 31,103,476.8 ug
1 troy ounce = 31,103,476.8 micrograms.
Real-world example
50 oz t × 31103476.8 = 1,555,173,840 ug
50 troy ounces = 1,555,173,840 micrograms.
Conversion table
| Troy ounce (oz t) | Microgram (ug) |
|---|---|
| 1 oz t | 31,103,476.8 ug |
| 5 oz t | 155,517,384 ug |
| 10 oz t | 311,034,768 ug |
| 25 oz t | 777,586,920 ug |
| 50 oz t | 1,555,173,840 ug |
| 100 oz t | 3,110,347,680 ug |
Reverse conversion: Microgram to Troy ounce
1 ug × 3.215075e-8 = 3.215075e-8 oz t
1 microgram = 3.215075e-8 troy ounces.
troy ounces = micrograms × 3.215075e-8
For a page dedicated to this direction, see Microgram to Troy ounce.
Understanding the Troy ounce (oz t)
A troy ounce is exactly 31.1034768 grams.
Understanding the Microgram (ug)
Microgram is 0.000001 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micrograms are in 1 troy ounce?
1 troy ounce equals 31,103,476.8 micrograms, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce to microgram?
Multiply the troy ounce value by 31103476.8. The converter above does this instantly to whatever precision you set.
How do I convert microgram back to troy ounce?
Use the reverse factor: 1 microgram equals 3.215075e-8 troy ounces. You can also use the swap control in the converter above to flip the direction instantly.
What is a troy ounce?
Troy ounce (oz t) is a unit of mass/weight.
What is a microgram?
Microgram (ug) is a unit of mass/weight.
Is the troy ounce to microgram conversion exact?
Yes. Both troy ounce and microgram are defined by fixed standards rather than physical artifacts, so the factor of 31103476.8 used above is exact to as many digits as you choose to display.