Convert Avoirdupois Drams to Quarters
Convert Avoirdupois Drams (dr av) to Quarters (qr) instantly and accurately.
Conversion Formula
qr = dr av × 0.0001395089286
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 While rarely used in modern commerce (having been replaced by grams in most applications), the avoirdupois dram still appears in some spice and herbalist contexts, in US gunpowder loading data (where charges are specified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 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.
Quick Reference Table
| Avoirdupois Drams (dr av) | Quarters (qr) |
|---|---|
| 1 dr av | 0.000139509 qr |
| 2 dr av | 0.000279018 qr |
| 5 dr av | 0.000697545 qr |
| 10 dr av | 0.00139509 qr |
| 25 dr av | 0.00348772 qr |
| 50 dr av | 0.00697545 qr |
| 100 dr av | 0.0139509 qr |