A troy ounce is exactly 31.1034768 grams.
Troy ounces to Nanograms Converter — oz t to ng
Convert Troy ounce (oz t) to Nanogram (ng) using the exact conversion factor (1 troy ounce = 31,103,476,800 nanogram). See the formula, worked examples, and conversion table.
Troy ounces to Nanograms 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.
Nanogram is 1e-9 gram units.
Result = input x 0.0311034768 / 1e-12.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Troy ounces to Nanograms
Weight conversions between Troy ounce and Nanogram 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 nanogram is 1e-9 gram units.
Formula
nanograms = troy ounces × 31103476800
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 nanogram equals 1e-12 base units, so dividing one by the other gives the direct troy ounce-to-nanogram factor of 31103476800.
Simple example
1 oz t × 31103476800 = 31,103,476,800 ng
1 troy ounce = 31,103,476,800 nanograms.
Real-world example
50 oz t × 31103476800 = 1.555174e+12 ng
50 troy ounces = 1.555174e+12 nanograms.
Conversion table
| Troy ounce (oz t) | Nanogram (ng) |
|---|---|
| 1 oz t | 31,103,476,800 ng |
| 5 oz t | 155,517,384,000 ng |
| 10 oz t | 311,034,768,000 ng |
| 25 oz t | 777,586,920,000 ng |
| 50 oz t | 1.555174e+12 ng |
| 100 oz t | 3.110348e+12 ng |
Reverse conversion: Nanogram to Troy ounce
1 ng × 3.215075e-11 = 3.215075e-11 oz t
1 nanogram = 3.215075e-11 troy ounces.
troy ounces = nanograms × 3.215075e-11
For a page dedicated to this direction, see Nanogram to Troy ounce.
Understanding the Troy ounce (oz t)
A troy ounce is exactly 31.1034768 grams.
Understanding the Nanogram (ng)
Nanogram is 1e-9 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms are in 1 troy ounce?
1 troy ounce equals 31,103,476,800 nanograms, using the exact defined conversion factor rather than an estimate.
How do I convert troy ounce to nanogram?
Multiply the troy ounce value by 31103476800. The converter above does this instantly to whatever precision you set.
How do I convert nanogram back to troy ounce?
Use the reverse factor: 1 nanogram equals 3.215075e-11 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 nanogram?
Nanogram (ng) is a unit of mass/weight.
Is the troy ounce to nanogram conversion exact?
Yes. Both troy ounce and nanogram are defined by fixed standards rather than physical artifacts, so the factor of 31103476800 used above is exact to as many digits as you choose to display.