A troy ounce is exactly 31.1034768 grams.
Troy ounces to Yottagrams Converter — oz t to Yg
Convert Troy ounce (oz t) to Yottagram (Yg) using the exact conversion factor (1 troy ounce = 3.110348e-23 yottagram). See the formula, worked examples, and conversion table.
Troy ounces to Yottagrams 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.
Yottagram is 1e+24 gram units.
Result = input x 0.0311034768 / 1e+21.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces to Yottagrams
Weight conversions between Troy ounce and Yottagram 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 yottagram is 1e+24 gram units.
Formula
yottagrams = troy ounces × 3.110348e-23
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 yottagram equals 1e+21 base units, so dividing one by the other gives the direct troy ounce-to-yottagram factor of 3.110348e-23.
Simple example
1 oz t × 3.110348e-23 = 3.110348e-23 Yg
1 troy ounce = 3.110348e-23 yottagrams.
Real-world example
50 oz t × 3.110348e-23 = 1.555174e-21 Yg
50 troy ounces = 1.555174e-21 yottagrams.
Conversion table
| Troy ounce (oz t) | Yottagram (Yg) |
|---|---|
| 1 oz t | 3.110348e-23 Yg |
| 5 oz t | 1.555174e-22 Yg |
| 10 oz t | 3.110348e-22 Yg |
| 25 oz t | 7.775869e-22 Yg |
| 50 oz t | 1.555174e-21 Yg |
| 100 oz t | 3.110348e-21 Yg |
Reverse conversion: Yottagram to Troy ounce
3.110348e-23 Yg × 3.215075e+22 = 1.000000103 oz t
3.110348e-23 yottagrams = 1.000000103 troy ounces.
troy ounces = yottagrams × 3.215075e+22
For a page dedicated to this direction, see Yottagram to Troy ounce.
Understanding the Troy ounce (oz t)
A troy ounce is exactly 31.1034768 grams.
Understanding the Yottagram (Yg)
Yottagram is 1e+24 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many yottagrams are in 1 troy ounce?
1 troy ounce equals 3.110348e-23 yottagrams, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce to yottagram?
Multiply the troy ounce value by 3.110348e-23. The converter above does this instantly to whatever precision you set.
How do I convert yottagram back to troy ounce?
Use the reverse factor: 1 yottagram equals 3.215075e+22 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 yottagram?
Yottagram (Yg) is a unit of mass/weight.
Is the troy ounce to yottagram conversion exact?
Yes. Both troy ounce and yottagram are defined by fixed standards rather than physical artifacts, so the factor of 3.110348e-23 used above is exact to as many digits as you choose to display.