Convert Quarters to Pennyweights
Convert Quarters (qr) to Pennyweights (dwt) instantly and accurately.
Conversion Formula
dwt = qr × 8166.666667
About Quarters
A quarter (qr) in the avoirdupois system equals 28 pounds or one quarter of a hundredweight - approximately 12.70 kg. Historically, quarters were used in British trade for measuring grain, wool, and other bulk commodities. The British quarter of grain (28 lb) was the standard purchase quantity at markets and mills throughout medieval and early modern England. In the US, the term 'quarter' sometimes refers to a quarter of a short hundredweight (25 lb) rather than the British 28 lb.
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
| Quarters (qr) | Pennyweights (dwt) |
|---|---|
| 1 qr | 8166.67 dwt |
| 2 qr | 16333.3 dwt |
| 5 qr | 40833.3 dwt |
| 10 qr | 81666.7 dwt |
| 25 qr | 204167 dwt |
| 50 qr | 408333 dwt |
| 100 qr | 816667 dwt |