Convert carats to tons for diamond certification, precious metal trading, and industrial applications. Accurate calculator with conversion factors and real-world examples.
1 carat equals 2e-7 ton
Formula: ton = ct × 2.20462e-7
The carat (200 milligrams) and ton represent vastly different weight scales used across jewelry, gemology, and industrial sectors. Understanding the relationship between these units—where 1 ton equals 5,000,000 carats—is essential for professionals in diamond trading, precious metals refinement, and bulk commodity measurement. This conversion bridges the micro-precision of gemstone evaluation with macro-scale industrial weighing.
Precision in carat-to-ton conversion directly impacts financial transactions in the diamond and precious metals industries, where errors can mean thousands of dollars per shipment. Gemologists certify individual stones in carats, but bulk inventory, mining yields, and international trade require ton measurements. A single miscalculation between these vastly different scales can result in significant loss or misrepresentation of asset value in high-stakes transactions.
Diamond dealers and certification labs work with individual stones measured in carats but must reconcile bulk inventory in tons. International diamond exchanges require precise conversion for certification documents, insurance valuations, and trade settlements. Accuracy ensures compliance with Kimberley Process regulations and prevents costly disputes in multi-million-dollar transactions.
Refineries process gold, silver, and platinum measured initially in carats per unit volume, then reconcile total daily/monthly production in tons. Bullion dealers quote prices per gram or troy ounce but must track inventory in tons for accounting and regulatory reporting. Conversion accuracy is critical for precious metals certification, purity verification, and international commodity trading.
| carats | tons |
|---|---|
| 10 ct | 0.000002 t |
| 50 ct | 0.00001 t |
| 100 ct | 0.00002 t |
| 500 ct | 0.0001 t |
| 1000 ct | 0.0002 t |
Formula: t = ct × conversion factor
The carat is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The ton is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This carat to 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.
One metric ton equals exactly 5,000,000 carats. This is calculated from 1 ton = 1,000 kilograms = 1,000,000 grams, and since 1 carat = 200 milligrams = 0.2 grams, dividing 1,000,000 grams by 0.2 grams per carat yields 5,000,000 carats. For US short tons (2,000 pounds), the conversion is 1 short ton = 4,535,923.7 carats. Always verify which ton type is specified in your transaction to avoid costly errors.
Carats provide precision for individual gemstones where weight differences of 0.01 carats can affect value by thousands of dollars. Tons are practical for bulk measurement where precision to the nearest ton is adequate. The carat scale emerged from historical gemstone trading practices using carob seeds, while tons developed from commercial bulk commerce. Modern gemology maintains carat precision because a 1-carat diamond and 0.99-carat diamond have dramatically different values, but this precision becomes impractical for shipments of thousands of stones.
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