Beef, chuck, arm pot roast, separable lean and fat, trimmed to 1/8" fat, select, raw: oz to Grams
Quick answer
One oz of beef, chuck, arm pot roast, separable lean and fat, trimmed to 1/8" fat, select, raw weighs 113 grams.
1 oz113 g
Reference serving (nutrition facts)100 g
Source: USDA FoodData Central - SR Legacy (2018-04) (USDA household portion weight)