There are 205 calories in 1 cup of cooked white long-grain rice. Long-grain white rice has fewer calories per cup than medium-grain and short-grain white rice, which each contain 242 calories.
One cup of cooked brown rice that is either medium grain or long grain contains about 218 calories. Wild rice, which is actually a type of seed harvested from semi-aquatic grass, contains the smallest amount of calories for rice. One cup of cooked wild rice contains just 166 calories.
A reliable list of calorie and nutrient information for thousands of foods can be found in the USDA National Nutrient Database system. It is searchable by food, food group and manufacturer.