Commodity Price Converter
Enter a price and its unit, and every other unit in that category updates live. This rescales a price ratio using fixed physical conversion constants — it does not fetch or embed live market data.
Pick Weight (metals) or Volume (oil/liquids), enter a price and its unit, and read the equivalent price in any other unit.
This converts price ratios only, using fixed physical-unit constants — it does not fetch or embed any live or historical market price.
| Unit | Price |
|---|
Why not just use the general unit converter?
Commodity markets use two units that don't appear in general-purpose measurement converters: the troy ounce (31.1034768 g) for precious metals like gold, silver, and platinum, and the petroleum barrel (158.987294928 L, defined as exactly 42 US gallons) for crude oil. A troy ounce is about 10% heavier than the everyday avoirdupois ounce (28.35 g) — using the wrong one silently produces a price that's off by 10%.
Reference conversions
| Conversion | Result |
|---|---|
| 1 troy oz to grams | 31.1034768 g |
| 1 troy oz to avoirdupois oz | 1.097143 oz |
| 1 barrel to liters | 158.987295 L |
| 1 barrel to US gallons | 42 gal (exact) |
| $2,000/troy oz to $/gram | $64.30/g |
| $80/barrel to $/liter | $0.50/L |
What this tool does not do
This is a unit-ratio converter, not a price feed — it never fetches, caches, or guesses a real gold, silver, or oil price. It also can't convert a weight-based price to a volume-based price (e.g. $/kg to $/liter) or vice versa, since that requires the specific commodity's density, which this tool does not model.