How Do You Convert Troy Ounces to Metric Tons?
Multiply troy ounces by 0.0000311035 to get metric tons, or divide by 32,150.7. The formula is: Metric Tons = Troy Ounces x 0.0000311035. Since 1 troy ounce equals 31.1035 grams and 1 metric ton equals 1,000,000 grams, the factor is 31.1035 / 1,000,000.
Priya Patel researches silver ETF holdings for a client report. The fund holds 580,000,000 troy ounces of silver. Converting: 580,000,000 x 0.0000311035 = 18,040 metric tons. She compares this to annual global silver production of about 26,000 metric tons to show that the ETF holds nearly 70% of one year of worldwide production.
Troy Ounces to Metric Tons Reference Table
| Troy Ounces | Metric Tons | Context |
|---|---|---|
| 1 ozt | 0.0000311 t | Single coin or small bar |
| 100 ozt | 0.00311 t | COMEX gold bar |
| 400 ozt | 0.01244 t | London Good Delivery bar |
| 1,000 ozt | 0.03110 t | Small dealer inventory |
| 10,000 ozt | 0.3110 t | Small vault holding |
| 32,151 ozt | 1.0 t | Exactly one metric ton |
| 100,000 ozt | 3.110 t | Institutional holding |
| 1,000,000 ozt | 31.10 t | Central bank reserve |
Practical Applications
Mining Output Reporting
Tom Henderson reviews quarterly reports from a gold mining company. Q3 production was 85,400 troy ounces. Converting: 85,400 x 0.0000311035 = 2.656 metric tons. The company reports to international investors in metric tons but trades on COMEX in troy ounces. Annual guidance of 320,000 troy ounces equals 9.95 metric tons — just under the 10-ton threshold that triggers different reporting requirements.
Precious Metal Recycling
Dana Kowalski demolishes an old electronics factory. The recycler estimates 2,500 troy ounces of recoverable gold from circuit boards and contacts. Converting: 2,500 x 0.0000311035 = 0.0778 metric tons (77.8 kg). The recycler quotes a recovery fee per metric ton of raw material but pays for gold extracted in troy ounces, so both units appear on the same invoice.
Jewelry Industry Supply Chain
Maya Singh analyzes the global jewelry supply chain for a research paper. The industry consumes about 68 million troy ounces of gold annually. Converting: 68,000,000 x 0.0000311035 = 2,115 metric tons. This represents roughly 63% of total annual gold mine production (3,300 metric tons), with the remainder going to technology, central banks, and investment products.