How Much Should a Bullmastiff Eat?
Typical adult weight: 100-130 lb (giant breed). Adjust the weight below to match your dog.
Check the calories per cup on your dog food's bag and enter it above; brands vary a lot (about 300-450 kcal per cup for dry food).
A neutered adult Bullmastiff weighing 100-130 lb needs roughly 1960-2380 calories a day, about 5.5-6.75 cups of a typical 350 kcal/cup dry food.
Breed note: A giant, heavy breed. Keep them lean to protect joints, and use large-breed puppy food for growing dogs.
Feeding a Bullmastiff puppy or adult
Giant breeds can keep growing until 18 to 24 months. Puppies need a large- or giant-breed puppy food and should be kept lean, because growing too fast can stress developing joints. Feeding two or more smaller meals a day instead of one large one is commonly advised; ask your vet about bloat risk.
Bullmastiff feeding FAQ
How much should a Bullmastiff eat per day?
A neutered adult Bullmastiff weighing 100-130 lb needs roughly 1960-2380 calories a day, about 5.5-6.75 cups of a typical 350 kcal/cup dry food. The exact amount depends on your dog's weight, age, activity and the calories in the food.
How much should an active Bullmastiff eat?
An active or working Bullmastiff may need about 2450-2980 calories a day, or 7-8.5 cups at 350 kcal/cup.
How much should a senior or low-activity Bullmastiff eat?
A senior or low-activity Bullmastiff may need about 1710-2090 calories a day, or 5-6 cups at 350 kcal/cup.
Related guides
- How to Read a Dog Food Label (and Find Calories Per Cup)
- Is My Dog a Healthy Weight? How to Check at Home
- Puppy Feeding Guide: How Much and How Often
- How to Switch Dog Food Without Upsetting Their Stomach
- How Many Calories Does My Dog Need Each Day?
- Dog Treats and Calories: The 10 Percent Rule
- Feeding a Senior Dog: What Changes With Age