A troy ounce is exactly 31.1034768 grams.
Troy ounces to Yoctograms Converter — oz t to yg
Convert Troy ounce (oz t) to Yoctogram (yg) using the exact conversion factor (1 troy ounce = 3.110348e+25 yoctogram). See the formula, worked examples, and conversion table.
Troy ounces to Yoctograms 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.
Yoctogram is 1e-24 gram units.
Result = input x 0.0311034768 / 1e-27.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces to Yoctograms
Weight conversions between Troy ounce and Yoctogram 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 yoctogram is 1e-24 gram units.
Formula
yoctograms = troy ounces × 3.110348e+25
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 yoctogram equals 1e-27 base units, so dividing one by the other gives the direct troy ounce-to-yoctogram factor of 3.110348e+25.
Simple example
1 oz t × 3.110348e+25 = 3.110348e+25 yg
1 troy ounce = 3.110348e+25 yoctograms.
Real-world example
50 oz t × 3.110348e+25 = 1.555174e+27 yg
50 troy ounces = 1.555174e+27 yoctograms.
Conversion table
| Troy ounce (oz t) | Yoctogram (yg) |
|---|---|
| 1 oz t | 3.110348e+25 yg |
| 5 oz t | 1.555174e+26 yg |
| 10 oz t | 3.110348e+26 yg |
| 25 oz t | 7.775869e+26 yg |
| 50 oz t | 1.555174e+27 yg |
| 100 oz t | 3.110348e+27 yg |
Reverse conversion: Yoctogram to Troy ounce
3.110348e+25 yg × 3.215075e-26 = 1.000000103 oz t
3.110348e+25 yoctograms = 1.000000103 troy ounces.
troy ounces = yoctograms × 3.215075e-26
For a page dedicated to this direction, see Yoctogram to Troy ounce.
Understanding the Troy ounce (oz t)
A troy ounce is exactly 31.1034768 grams.
Understanding the Yoctogram (yg)
Yoctogram is 1e-24 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many yoctograms are in 1 troy ounce?
1 troy ounce equals 3.110348e+25 yoctograms, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce to yoctogram?
Multiply the troy ounce value by 3.110348e+25. The converter above does this instantly to whatever precision you set.
How do I convert yoctogram back to troy ounce?
Use the reverse factor: 1 yoctogram equals 3.215075e-26 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 yoctogram?
Yoctogram (yg) is a unit of mass/weight.
Is the troy ounce to yoctogram conversion exact?
Yes. Both troy ounce and yoctogram are defined by fixed standards rather than physical artifacts, so the factor of 3.110348e+25 used above is exact to as many digits as you choose to display.