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Scruple (unit)

Mass unit in the apothecaries' system From Wikipedia, the free encyclopedia

The scruple () is a small unit in the apothecaries' system,[1] derived from the old Roman scrupulum (lit.'small pebble') unit[2] (scrupulus/scrupulum).

Mass unit

The scruple is 8175 of an ounce (or 124 of a troy ounce), 13 dram, or 20 grains:[1] it is therefore exactly 1.2959782 grams.

The Roman scruple was 11.875% smaller, therefore being exactly 1.14208078875 grams.

Volume unit

The fluid scruple is 124 fluid ounce, 13 fluid dram, 20 minims, 14 teaspoon, or 1 saltspoon.

It is therefore equal to 1.2322304 milliliters in the US customary system, or 1.1838776 milliliters in the imperial customary system (to eight significant figures).

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