Unit converter — Gold weight
Grams to grains converter
Convert grams (g) to grains (gr). Source-cited conversion factor, exact to the displayed precision.
Results are mathematically exact for the displayed precision. How we calculate.
Convert grams to grains— the formula
Grams convert to grains by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.
gr = g × 15.4324
g = gr × 0.064799
Troy weight system, ISO 31-3: 1 troy oz = 31.1034768 g; 1 dwt (pennyweight) = 1/20 troy oz = 1.55517384 g; 1 grain = 1/24 dwt = 0.06479891 g (NIST SP 811).
Frequently asked questions
How many grains are in a gram?
1 g = 15.4324 gr. To convert any amount, multiply by 15.4324.How do you convert grams to grains?
Multiply the number of grams by 15.4324 to get grains. The formula is shown in the "How it's calculated" section above.Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.