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Copper

Copper Price Per Ounce Today

Track the live copper price per troy ounce in USD. Converted from COMEX per-pound spot data — 1 troy ounce = 31.1035 grams. Real-time charts updated every minute.

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Copper Price Per Troy Ounce

While copper is traditionally quoted per pound (in the US) or per metric tonne (internationally), many precious metals investors and bullion buyers prefer the per-troy-ounce measurement used for gold, silver, and platinum. This page converts the live copper spot price to troy ounces for easy comparison with other metals. One troy ounce of copper weighs 31.1035 grams, which equals approximately 0.0686 pounds — so the per-ounce price is roughly 6.86% of the per-pound price.

  • Copper spot is traditionally quoted per pound on COMEX (symbol HG)
  • 1 troy ounce = 31.1035 grams = 0.0686 pounds
  • Much cheaper per ounce than precious metals — copper trades in cents per ounce
  • Copper bullion bars and rounds are popular investment and collectible products
  • Industrial demand from electrical wiring, construction, and EVs drives pricing

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Frequently Asked Questions

How much is copper per troy ounce?
Copper per troy ounce is calculated by multiplying the COMEX per-pound price by 0.0686 (since 1 troy ounce = 31.1035g and 1 pound = 453.592g). For example, if copper is $4.50 per pound, one troy ounce costs approximately $0.31. Check our live chart above for the real-time copper price per troy ounce.
Why is copper quoted per pound instead of per ounce?
Copper is quoted per pound on COMEX because it is an industrial base metal traded in large volumes, not a precious metal. Each COMEX copper futures contract represents 25,000 pounds. Per-pound pricing keeps the numbers practical for industrial buyers. Precious metals like gold and silver use troy ounces because they trade in much smaller quantities at much higher prices per unit weight.
Is buying copper by the ounce worth it?
Copper bullion bars and rounds are more of a novelty or collectible item than a serious investment. Because copper is so cheap per ounce compared to gold or silver, the premium over spot price on small copper products can be 50-200%. Serious copper investors typically buy larger bars (1 lb, 5 lb, or 10 lb) to minimize the per-ounce premium.
How does copper per ounce compare to silver?
Silver is roughly 80 to 100 times more expensive per troy ounce than copper. For example, if silver is $30 per troy ounce and copper is $0.31 per troy ounce, the silver-to-copper ratio is about 97:1. This massive price difference is why copper is classified as a base metal rather than a precious metal, despite its importance in industry.