Rontogram is 1e-27 gram units.
Rontograms to Troy ounces Converter — rg to oz t
Convert Rontogram (rg) to Troy ounce (oz t) using the exact conversion factor (1 rontogram = 3.215075e-29 troy ounce). See the formula, worked examples, and conversion table.
Rontograms to Troy ounces 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.
A troy ounce is exactly 31.1034768 grams.
Result = input x 1e-30 / 0.0311034768.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Rontograms to Troy ounces
Weight conversions between Rontogram and Troy ounce 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: Rontogram is 1e-27 gram units, and a troy ounce is exactly 31.1034768 grams.
Formula
troy ounces = rontograms × 3.215075e-29
This factor comes from each unit's defined relationship to the category's base unit: 1 rontogram equals 1e-30 base units, and 1 troy ounce equals 0.0311034768 base units, so dividing one by the other gives the direct rontogram-to-troy ounce factor of 3.215075e-29.
Simple example
1 rg × 3.215075e-29 = 3.215075e-29 oz t
1 rontogram = 3.215075e-29 troy ounces.
Real-world example
50 rg × 3.215075e-29 = 1.607537e-27 oz t
50 rontograms = 1.607537e-27 troy ounces.
Conversion table
| Rontogram (rg) | Troy ounce (oz t) |
|---|---|
| 1 rg | 3.215075e-29 oz t |
| 5 rg | 1.607537e-28 oz t |
| 10 rg | 3.215075e-28 oz t |
| 25 rg | 8.037687e-28 oz t |
| 50 rg | 1.607537e-27 oz t |
| 100 rg | 3.215075e-27 oz t |
Reverse conversion: Troy ounce to Rontogram
3.215075e-29 oz t × 3.110348e+28 = 1.000000107 rg
3.215075e-29 troy ounces = 1.000000107 rontograms.
rontograms = troy ounces × 3.110348e+28
For a page dedicated to this direction, see Troy ounce to Rontogram.
Understanding the Rontogram (rg)
Rontogram is 1e-27 gram units.
Understanding the Troy ounce (oz t)
A troy ounce is exactly 31.1034768 grams.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many troy ounces are in 1 rontogram?
1 rontogram equals 3.215075e-29 troy ounces, using the exact defined conversion factor rather than an estimate.
How do I convert rontogram to troy ounce?
Multiply the rontogram value by 3.215075e-29. The converter above does this instantly to whatever precision you set.
How do I convert troy ounce back to rontogram?
Use the reverse factor: 1 troy ounce equals 3.110348e+28 rontograms. You can also use the swap control in the converter above to flip the direction instantly.
What is a rontogram?
Rontogram (rg) is a unit of mass/weight.
What is a troy ounce?
Troy ounce (oz t) is a unit of mass/weight.
Is the rontogram to troy ounce conversion exact?
Yes. Both rontogram and troy ounce are defined by fixed standards rather than physical artifacts, so the factor of 3.215075e-29 used above is exact to as many digits as you choose to display.