A metric carat is exactly 200 milligrams.
Carats to Troy ounces
Convert carats (ct) to troy ounces (oz t) instantly. Free online weight converter with formulas, tables and examples.
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A troy ounce is exactly 31.1034768 grams.
oz t = ct × 0.00643014931373
Results update instantly for Carats to Troy ounces conversions.
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Formula
oz t = ct × 0.00643014931373
ct = oz t ÷ 0.00643014931373
Conversion table
| 1 ct | 0.006430 oz t |
| 5 ct | 0.032151 oz t |
| 10 ct | 0.064301 oz t |
| 20 ct | 0.128603 oz t |
| 50 ct | 0.321507 oz t |
| 100 ct | 0.643015 oz t |
| 500 ct | 3.215075 oz t |
| 1000 ct | 6.430149 oz t |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the carat (ct). A metric carat is exactly 200 milligrams.
What is the destination unit in this conversion?
The destination unit is the troy ounce (oz t). A troy ounce is exactly 31.1034768 grams.
How do I convert carats to troy ounces?
Multiply the number of carats by 0.00643014931373 to get the equivalent value in troy ounces. For example, 5 ct × 0.00643014931373 = 0.032151 oz t.
Is the carat to troy ounce conversion exact?
Yes. This converter uses a fixed factor of 0.00643014931373, 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 carat and troy ounce values.
Can I convert troy ounces back to carats?
Yes. Multiply the troy ounces value by 155.517384, or divide it by 0.00643014931373, to convert back to carats.
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About this conversion
This page converts carats (ct) into troy ounces (oz t) using the Universal Converter's mass conversion engine.
Carat-to-Troy ounce conversions are useful for everyday calculations, scientific work, shipping, and any task that mixes different weight or mass units.
The formula is oz t = ct × 0.00643014931373, based on the standard definitions of carat and troy ounce.
Because the conversion factor is fixed, results stay consistent and repeatable no matter how many times you calculate them.
Carat: A metric carat is exactly 200 milligrams. Troy ounce: A troy ounce is exactly 31.1034768 grams.