Convert Avoirdupois Drams to Pennyweights
Convert Avoirdupois Drams (dr av) to Pennyweights (dwt) instantly and accurately.
Conversion Formula
dwt = dr av × 1.139322917
About Avoirdupois Drams
An avoirdupois dram (dr av) is 1/16 of an avoirdupois ounce - approximately 1.772 grams. Part of the avoirdupois system that governs everyday trade weights in the UK and US, it was historically used to measure small quantities of goods and spices in commerce. While rarely used in modern commerce (having been replaced by grams in most applications), the avoirdupois dram still appears in some spice and herbalist contexts, in US gunpowder loading data (where charges are specified in grains and drams), and in archaic recipe books.
About Pennyweights
A pennyweight (dwt or pwt) equals 24 grains or 1/20 of a troy ounce - approximately 1.555 grams. Its name derives from the weight of an English silver penny in the medieval period. Pennyweights are the standard unit used by jewellers and goldsmiths in North America for weighing precious metals: gold, silver, and platinum. When a jeweller quotes the gold weight of a ring or chain, they typically use pennyweights. Gold buyers, refiners, and scrap metal dealers quote prices per pennyweight (often abbreviated 'DWT') when appraising jewellery.
Quick Reference Table
| Avoirdupois Drams (dr av) | Pennyweights (dwt) |
|---|---|
| 1 dr av | 1.13932 dwt |
| 2 dr av | 2.27865 dwt |
| 5 dr av | 5.69661 dwt |
| 10 dr av | 11.3932 dwt |
| 25 dr av | 28.4831 dwt |
| 50 dr av | 56.9661 dwt |
| 100 dr av | 113.932 dwt |