Convert Pennyweights to Avoirdupois Drams
Convert Pennyweights (dwt) to Avoirdupois Drams (dr av) instantly and accurately.
Conversion Formula
dr av = dwt × 0.8777142857
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.
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 While rarely used in modern commerce (having been replaced by grams in most applications), the avoirdupois dram still appears in some spice and herbalist contexts, in US gunpowder loading data (where charges are specified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.
Quick Reference Table
| Pennyweights (dwt) | Avoirdupois Drams (dr av) |
|---|---|
| 1 dwt | 0.877714 dr av |
| 2 dwt | 1.75543 dr av |
| 5 dwt | 4.38857 dr av |
| 10 dwt | 8.77714 dr av |
| 25 dwt | 21.9429 dr av |
| 50 dwt | 43.8857 dr av |
| 100 dwt | 87.7714 dr av |