Breed guide

Neapolitan Mastiff: healthy weight & calories

A healthy adult Neapolitan Mastiff usually weighs 50 to 70 kg (110.2 to 154.3 lb). That is a wide range because frame size varies a lot even within one breed, so how they feel under your hands matters more than the number alone.

Daily calories by activity level

Estimated for a Neapolitan Mastiff at 60 kg, a healthy weight in the middle of the breed range. Resting energy is 70 × weight0.75 kcal; the multiplier below scales it up for how much they move and whether they are desexed.

ActivityDesexedEntire
Mostly restsa few short potty walks 1,811 kcal 2,113 kcal
Short daily walks20 to 30 minutes total 2,113 kcal 2,415 kcal
Active most days45 to 60 minutes, some play 2,415 kcal 2,716 kcal
Very activeruns, hikes or dog sport 2,716 kcal 3,018 kcal

Puppies get roughly twice their resting energy while growing, about 3,018 kcal a day at this weight, but puppy needs change every few weeks so this is a starting point, not a fixed number. Seniors typically need about 10% less than an adult at the same activity level.

Good to know for a Neapolitan Mastiff

Extra weight makes breathing harder for flat-faced breeds, and obesity is a major risk factor for airway problems. Keep walks cool, short and frequent rather than long, and avoid exercise in the heat.

Why the weight matters

Studies of dogs a similar size to a Neapolitan Mastiff found overweight dogs had a shorter median life span than lean ones, by 0.3 to 0.6 years (Salt et al. 2019). That is an association from observational data, not a promise, but it is one of the largest studies of its kind.

Get their exact numbers

This page gives a breed-level estimate. For portions in grams, a calorie target adjusted for your dog's own age, activity and desexed status, and a 7-day activity plan, take the free 60-second check.

Check Neapolitan Mastiff free →

How much should a Neapolitan Mastiff weigh?

A healthy adult Neapolitan Mastiff typically weighs 50 to 70 kg (110.2 to 154.3 lb). Frame size varies a lot within a breed, so body condition (can you feel the ribs?) matters more than the number on the scale.

How many calories does a Neapolitan Mastiff need a day?

A desexed adult Neapolitan Mastiff at a healthy weight typically needs roughly 2,113 kcal a day with short daily walks, more if they are very active or not desexed, less if they mostly rest. Use the calculator below for a number tailored to your dog.

Similar breeds: Leonberger, Great Dane, Newfoundland

Also see: the dog calorie calculator · is my dog overweight? · all breeds

This is an estimate, not a diagnosis. Talk to your vet before changing your dog's diet or exercise. How we work this out