A troy ounce is exactly 31.1034768 grams.
Troy ounces to Grains
Convert troy ounces (oz t) to grains (gr) instantly. Free online weight converter with formulas, tables and examples.
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A grain is exactly 64.79891 milligrams.
gr = oz t × 480
Results update instantly for Troy ounces to Grains conversions.
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Formula
gr = oz t × 480
oz t = gr ÷ 480
Conversion table
| 1 oz t | 480.000000 gr |
| 5 oz t | 2400.000000 gr |
| 10 oz t | 4800.000000 gr |
| 20 oz t | 9600.000000 gr |
| 50 oz t | 24000.000000 gr |
| 100 oz t | 48000.000000 gr |
| 500 oz t | 240000.000000 gr |
| 1000 oz t | 480000.000000 gr |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the troy ounce (oz t). A troy ounce is exactly 31.1034768 grams.
What is the destination unit in this conversion?
The destination unit is the grain (gr). A grain is exactly 64.79891 milligrams.
How do I convert troy ounces to grains?
Multiply the number of troy ounces by 480 to get the equivalent value in grains. For example, 5 oz t × 480 = 2400.000000 gr.
Is the troy ounce to grain conversion exact?
Yes. This converter uses a fixed factor of 480, so results are precise and consistent every time you use it.
Where is this conversion commonly used?
It's used in everyday measurement, shipping and logistics, scientific and industrial work, and any context where you need to switch between troy ounce and grain values.
Can I convert grains back to troy ounces?
Yes. Multiply the grains value by 0.00208333333333, or divide it by 480, to convert back to troy ounces.
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About this conversion
This page converts troy ounces (oz t) into grains (gr) using the Universal Converter's mass conversion engine.
Troy ounce-to-Grain conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is gr = oz t × 480, based on the standard definitions of troy ounce and grain.
Because the conversion factor is fixed, results stay consistent and repeatable no matter how many times you calculate them.
Troy ounce: A troy ounce is exactly 31.1034768 grams. Grain: A grain is exactly 64.79891 milligrams.