Convert troy ounces to carats for jewelry, gemstones, and precious metals. One troy ounce equals 31.1035 carats. Accurate calculator with industry standards.
1 troy ounce equals 155.51760925889639 carat
Formula: ct = oz t × 155.517
Understanding the conversion between troy ounces and carats is essential for jewelry professionals, gemologists, and precious metal traders. One troy ounce equals exactly 31.1035 carats, a relationship critical for accurate pricing and valuation in the gemstone and precious metals industries worldwide.
Incorrect conversions between troy ounces and carats can result in significant financial losses. A single troy ounce difference in a gold transaction worth $2,000 per troy ounce represents a $2,000 error. Gemstone pricing depends on precise carat weight—a 1-carat error on a $10,000 per carat diamond means a $10,000 valuation mistake. Industry standards require exact conversions for legal documentation and insurance purposes.
Gold, silver, and platinum traders use troy ounces as the standard measurement for bullion trading globally. Converting to carats is necessary when dealing with jewelry-grade materials or when combining bullion with gemstone components. International markets quote precious metals in troy ounces, but jewelers often work in carats for mixed-metal jewelry pieces.
Jewelry manufacturers and designers work primarily in carats when specifying gemstone weights and precious metal content in finished pieces. However, when sourcing raw materials or working with precious metal suppliers, they receive specifications in troy ounces. Understanding this conversion ensures accurate material costs and final product specifications.
| troy ounces | carats |
|---|---|
| 1 oz t | 155.517609 ct |
| 2 oz t | 311.035219 ct |
| 5 oz t | 777.588046 ct |
| 10 oz t | 1555.176093 ct |
| 20 oz t | 3110.352185 ct |
Formula: ct = oz t × conversion factor
The troy ounce is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The carat is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This troy ounce to carat converter uses high-precision conversion factors to ensure accurate results for professional and academic use.
Our calculator provides results with up to 10 decimal places for maximum accuracy.
Exactly 31.1035 carats equal one troy ounce. This precise conversion is the international standard for precious metals and gemstones. For practical purposes, you can remember that 1 troy ounce ≈ 31.1 carats. This relationship is critical for jewelry valuations, insurance documentation, and precious metals trading. When multiplying troy ounces by 31.1035, you get the carat equivalent.
Historically, the troy ounce became the standard for precious metals trading in international commodity markets, while the carat became standard for gemstones due to its smaller, more precise unit. Modern jewelry combines both: precious metal weight (troy ounces from suppliers) and gemstone weight (carats). This dual system persists because international precious metals markets quote prices in troy ounces, while gemstone pricing uses carats. Converting between them is essential for complete jewelry valuations.
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