Convert troy ounces to Carat (Metric)
Western Europe · European Weight · standardized · modern
Exact by definition The unit is fixed by statute or standard against an exactly defined anchor, so the only rounding is in the digits displayed.
1 troy ounce = 155.517 Carat (Metric)
Carat (Metric) = troy ounces × 155.51738
Convert any amount
troy ounces to Carat (Metric) table
| troy ounces | Carat (Metric) |
|---|---|
| 0.25 troy ounces | 38.8793 Carat (Metric) |
| 0.5 troy ounces | 77.7587 Carat (Metric) |
| 1 troy ounce | 155.517 Carat (Metric) |
| 2 troy ounces | 311.035 Carat (Metric) |
| 3 troy ounces | 466.552 Carat (Metric) |
| 4 troy ounces | 622.07 Carat (Metric) |
| 5 troy ounces | 777.587 Carat (Metric) |
| 10 troy ounces | 1,555.17 Carat (Metric) |
| 20 troy ounces | 3,110.35 Carat (Metric) |
| 25 troy ounces | 3,887.93 Carat (Metric) |
| 50 troy ounces | 7,775.87 Carat (Metric) |
| 100 troy ounces | 15,551.7 Carat (Metric) |
About the Carat (Metric)
International gemstone weight. 1 Carat = 0.2g exactly.
- Symbol
- ct
- Value in SI
- 1 Carat (Metric) = 0.0002 kilogram
- Typical use
- jewellery
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI kilogram. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other european weight units in the Western Europe family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
Related conversions
Frequently asked
How many Carat (Metric) are in a troy ounce?
1 troy ounce = 155.517 Carat (Metric). Multiply the number of troy ounces by 155.51738 to get Carat (Metric).
What is Carat (Metric) used for?
International gemstone weight. 1 Carat = 0.2g exactly. It is classified as standardized and dates from the modern period.
Is the Carat (Metric) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI kilogram, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Carat (Metric) conversion?
Exact by definition — The unit is fixed by statute or standard against an exactly defined anchor, so the only rounding is in the digits displayed. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert troy ounces to Carat (Metric). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/troy-ounce-si-to-carat
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