Convert carats to long tons for precious stones, jewelry manufacturing, and international shipping. Accurate calculator with industry-specific examples and conversion factors.
1 carat equals 1.968414e-7 long ton
Formula: long tn = ct × 1.96841e-7
Converting carats to long tons bridges two measurement worlds: gemstones and bulk cargo. One carat equals 0.0000002 long tons (or 1 long ton equals 5,000,000 carats). This conversion is essential for jewelry manufacturers, gemstone traders, and logistics professionals managing precious material shipments across international markets.
Precision in carat-to-long-ton conversions directly impacts inventory valuation, shipping costs, and regulatory compliance. A single miscalculation in gemstone shipments worth thousands of carats can result in significant financial discrepancies. For jewelry manufacturers processing 100,000 carats monthly, accurate conversion ensures proper cost allocation and customs documentation accuracy.
Jewelry manufacturers and diamond traders must convert between carats (for individual stones and finished pieces) and long tons (for bulk material shipments and inventory management). International gemstone dealers import rough diamonds and colored stones in quantities measured in long tons, then process and sell them in carats. Accurate conversion ensures proper valuation, cost tracking, and compliance with international trade documentation.
Shipping companies and logistics providers handling precious gemstones and diamonds require accurate weight conversions for manifests, insurance calculations, and regulatory compliance. A single long ton shipment might contain millions of individual carats of gemstones, requiring precise documentation. International customs and insurance companies depend on accurate carat-to-long-ton conversions for proper classification and valuation of shipments.
| carats | long tons |
|---|---|
| 10 ct | 0.000002 LT |
| 50 ct | 0.00001 LT |
| 100 ct | 0.00002 LT |
| 500 ct | 0.000098 LT |
| 1000 ct | 0.000197 LT |
Formula: LT = ct × conversion factor
The carat is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The long ton is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This carat to long ton 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 5,000,000 carats equal 1 long ton. This precise relationship comes from standardized definitions: 1 long ton = 2,240 pounds = 1,016,047 grams, and 1 carat = 200 milligrams. Therefore: 1,016,047 grams ÷ 0.2 grams per carat = 5,080,235 carats (approximately 5 million). For practical purposes, remember: 1 long ton = 5,000,000 carats exactly.
Carats provide precision for individual gemstones and finished jewelry pieces, where weights range from 0.5 to 100+ carats. Long tons measure bulk cargo and shipping quantities. A jewelry store sells rings in carats, but a diamond importer receives rough stones by the long ton. Using appropriate units for each context ensures accuracy: carats for retail and individual pieces, long tons for wholesale and logistics.
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