How to convert grams to grains
One gram weighs 1 grams and one grain weighs 0.0648 grams, so 1 gram = 15.4324 grains. Multiply any amount in grams by 15.4324 to get grains, or divide by 15.4324 to go back.
Example
10 grams × 15.4324 = 154.3236 grains. At today's price, that weight of pure gold is worth $1,331.
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.