Convert Quarters to Scruples
Convert Quarters (qr) to Scruples (s ap) instantly and accurately.
Conversion Formula
s ap = qr × 9800
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 Scruples
A scruple (s ap) is a unit of the apothecary weight system equal to 20 grains or approximately 1.296 grams. Derived from the Latin 'scrupulus' (a small sharp stone used as a counterweight), it was the basic dispensing unit in pre-metric pharmacy across Europe. The apothecary system divided the fluid ounce into 8 drams, each dram into 3 scruples, and each scruple into 20 grains - a hierarchy memorised by every 19th-century pharmacist.
Quick Reference Table
| Quarters (qr) | Scruples (s ap) |
|---|---|
| 1 qr | 9800 s ap |
| 2 qr | 19600 s ap |
| 5 qr | 49000 s ap |
| 10 qr | 98000 s ap |
| 25 qr | 245000 s ap |
| 50 qr | 490000 s ap |
| 100 qr | 980000 s ap |