Precious metals weight guide
Grams to Troy Ounces: Precious Metals Conversion Guide
To convert grams to troy ounces, divide grams by 31.1034768. This conversion matters because precious-metals prices are commonly quoted per troy ounce while scales and product labels may use grams.
Grams to troy ounces formula
The formula is grams ÷ 31.1034768 = troy ounces.
Example: 100 grams ÷ 31.1034768 equals approximately 3.21507 troy ounces.
Common gram conversions
31.1034768 grams equals 1 troy ounce. 10 grams equals about 0.321507 troy ounce. 1 gram equals about 0.0321507 troy ounce.
Round only after completing the calculation to avoid compounding error.
Why this matters for gold and silver
A gram-denominated bar must be converted before comparing its metal weight directly with a price quoted per troy ounce.
Retail premiums, spreads, and fabrication costs are separate from the unit conversion.
Use the converter
The Troy Ounce Converter handles grams, kilograms, ordinary ounces, grains, pennyweight, and troy ounces.
Physical metals research
See How Physical Metals Are Sized and Priced
Compare gold and silver products offered in grams, fractional troy ounces, and full troy-ounce sizes. Check the total delivered price and premium rather than comparing weight alone.
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