Convert from uncia [Rome] to gros

Unit Definition (uncia [Rome])
The uncia is the Roman ounce, equal to about 27.2875 grams of 0.9625 ounce avoirdupois. There were 12 ounces in a Roman pound, and the word uncia means a 12th part; its name gives us the ounce, of course, and also the inch.

Unit Definition (gros)
The gros is a traditional French weight unit equal to 3 deniers (about 3.824 grams).