How many pennyweights are in a gram?

1 g = 0.643015 dwt. To convert any amount, multiply by 0.643015.

How do you convert grams to pennyweights?

Multiply the number of grams by 0.643015 to get pennyweights. 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.

Unit converter — Gold weight

Grams to pennyweights converter

Convert grams (g) to pennyweights (dwt). Source-cited conversion factor, exact to the displayed precision.

Results are mathematically exact for the displayed precision. How we calculate.

How it's calculated

Convert grams to pennyweights— the formula

Grams convert to pennyweights by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.

dwt = g × 0.643015

g = dwt × 1.5552

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).

Questions

Frequently asked questions

How many pennyweights are in a gram?
1 g = 0.643015 dwt. To convert any amount, multiply by 0.643015.
How do you convert grams to pennyweights?
Multiply the number of grams by 0.643015 to get pennyweights. 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.