Definition:Troy/Pennyweight

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Definition

The pennyweight is a troy unit of mass.


Conversion Factors

\(\ds \) \(\) \(\ds 1\) pennyweight
\(\ds \) \(=\) \(\ds 24\) grains
\(\ds \) \(\approx\) \(\ds 1 \cdotp 56\) grams


Symbol

The symbol for the pennyweight is $\text {dwt}$.

This derives from the Latin denarius, which evolved into the (old) penny.


Sources