6 % 1g Fat. Sign Up. Get full nutrition facts and other common serving sizes of Brown Rice including 1 oz, dry, yields and 100 g. Serving Size: 1/2 cup: Amount Per Serving. Serving Size: 1/2 cup: Amount Per Serving. There are 108 calories in a 1/2 cup of Brown Rice (Long-Grain, Cooked). There are 107 calories in a 1/2 cup of cooked Brown Rice. Serving Size : 1 cup. There are 108 calories in a 1/2 cup of Brown Rice (Long-Grain, Cooked). Calories. Find nutrition facts for over 2,000,000 foods. Generic Generic - Brown Rice, Medium Grain, Cooked, 1/2 Cup. Nutrition Facts. 87 % 34g Carbs. How does this food fit into your daily goals? 8 % 3g Protein. Calories. About Food Exercise Apps Community Blog Shop Premium. Nutrition Facts. 150 Cal. Get full nutrition facts and other common serving sizes of Brown Rice (Long-Grain, Cooked) including 1 oz and 100 g. There are 109 calories in a 1/2 cup of Brown Rice (Medium-Grain, Cooked). Daily Goals. Log In. Log Food. Calorie Goal 1,850 cal.