How to convert grains to grams
One grain weighs 0.0648 grams and one gram weighs 1 grams, so 1 grain = 0.0648 grams. Multiply any amount in grains by 0.0648 to get grams, or divide by 0.0648 to go back.
Example
10 grains × 0.0648 = 0.648 grams. At today's price, that weight of pure gold is worth $86.26.
Why units matter for precious metals
Bullion is priced in troy ounces, jewelry in grams, South Asian markets in tolas and Chinese markets in taels. Mixing up the avoirdupois ounce (28.35 g) and troy ounce (31.10 g) is a common 9.7% error when comparing prices.
- Ask sellers which ounce they mean.
- Convert everything to grams before comparing offers.
- Use the exact factors on this page rather than rounded ones for large amounts.
Live values use MetalflowAPI prices.