Convert Scruples to Grams
Convert Scruples (s ap) to Grams (g) instantly and accurately.
Conversion Formula
g = s ap × 1.2959782
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.
About Grams
The gram (g) is the basic metric unit of mass, equal to one thousandth of a kilogram. It is universally used in cooking, nutrition, postal services, and scientific measurement. Almost all food packaging worldwide shows nutritional information per 100 g. A US nickel coin weighs exactly 5 g, a teaspoon of sugar about 4 g, and a standard paperclip approximately 1 g. In chemistry, the gram is central to molar mass: one mole of carbon-12 atoms weighs exactly 12 g. Postal rates are typically scaled per gram or per 100 g.
Quick Reference Table
| Scruples (s ap) | Grams (g) |
|---|---|
| 1 s ap | 1.29598 g |
| 2 s ap | 2.59196 g |
| 5 s ap | 6.47989 g |
| 10 s ap | 12.9598 g |
| 25 s ap | 32.3995 g |
| 50 s ap | 64.7989 g |
| 100 s ap | 129.598 g |