Per 3.5 ounces (100 grams), chicken drumsticks have 172 calories, 28.3 grams of protein and 5.7 grams of fat (4). When it comes to calorie count, about 70% come from protein while 30% come from fat. Summary One chicken drumstick has 76 calories, or 172 calories per 3.5 ounces (100 grams). It's 70% protein and 30% fat.