A troy ounce is exactly 31.1034768 grams.
Troy ounces to Drams
Convert troy ounces (oz t) to drams (dr) instantly. Free online weight converter with formulas, tables and examples.
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An avoirdupois dram is 1/16 ounce.
dr = oz t × 17.5542857143
Results update instantly for Troy ounces to Drams conversions.
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Formula
dr = oz t × 17.5542857143
oz t = dr ÷ 17.5542857143
Conversion table
| 1 oz t | 17.554286 dr |
| 5 oz t | 87.771429 dr |
| 10 oz t | 175.542857 dr |
| 20 oz t | 351.085714 dr |
| 50 oz t | 877.714286 dr |
| 100 oz t | 1755.428571 dr |
| 500 oz t | 8777.142857 dr |
| 1000 oz t | 17554.285714 dr |
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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 dram (dr). An avoirdupois dram is 1/16 ounce.
How do I convert troy ounces to drams?
Multiply the number of troy ounces by 17.5542857143 to get the equivalent value in drams. For example, 5 oz t × 17.5542857143 = 87.771429 dr.
Is the troy ounce to dram conversion exact?
Yes. This converter uses a fixed factor of 17.5542857143, 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 dram values.
Can I convert drams back to troy ounces?
Yes. Multiply the drams value by 0.0569661458333, or divide it by 17.5542857143, to convert back to troy ounces.
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About this conversion
This page converts troy ounces (oz t) into drams (dr) using the Universal Converter's mass conversion engine.
Troy ounce-to-Dram conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is dr = oz t × 17.5542857143, based on the standard definitions of troy ounce and dram.
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. Dram: An avoirdupois dram is 1/16 ounce.