Question 1

How much should a Neapolitan Mastiff weigh?

Accepted Answer

The ideal weight for a Neapolitan Mastiff is 110.2–154.3 lbs (50–70 kg). Giant breeds have slower metabolisms, so weight management is especially important.

Question 2

How many calories does a Neapolitan Mastiff need per day?

Accepted Answer

A typical adult Neapolitan Mastiff weighing about 132 lbs (60 kg) needs approximately 2415–3018 kcal per day, depending on activity level and neuter status.

Question 3

Is my Neapolitan Mastiff overweight?

Accepted Answer

59% of dogs are overweight. Check your Neapolitan Mastiff's Body Condition Score (BCS) — if you can't easily feel their ribs or they have no visible waist, they may be overweight. Take our free 2-minute BCS assessment.

Question 4

When do Neapolitan Mastiffs stop growing?

Accepted Answer

Most Neapolitan Mastiffs reach their full adult weight between 18 and 24 months of age. Giant breeds are the slowest to mature and can keep growing until 18–24 months. Use the growth milestones section above to track if your Neapolitan Mastiff is growing at a healthy rate.

Question 5

How can I tell if my Neapolitan Mastiff is overweight?

Accepted Answer

Check three signs: (1) You can't feel your Neapolitan Mastiff's ribs easily under the fur. (2) From above, there's no visible waist behind the ribs. (3) From the side, the belly doesn't tuck up after the chest. If any of these apply, your Neapolitan Mastiff may be carrying extra weight. Use the Body Condition Score checker above for a quick assessment, or consult your vet.

Question 6

How much should a Neapolitan Mastiff puppy weigh at 3 months?

Accepted Answer

A 3-month-old Neapolitan Mastiff typically weighs 44.1–77.2 lbs (20.0–35.0 kg). Use our Puppy Weight Predictor to estimate your puppy's adult weight based on current age and weight.

Question 7

What is the best diet for a Neapolitan Mastiff to maintain healthy weight?

Accepted Answer

Adult Neapolitan Mastiffs typically need 2415–3018 calories per day, depending on activity level. Feed a high-quality dog food appropriate for their life stage (puppy, adult, or senior) and size. Use our Calorie Calculator for a personalized daily food amount recommendation.

Question 8

How much exercise does a Neapolitan Mastiff need?

Accepted Answer

Neapolitan Mastiffs are a giant-sized breed and typically need 45–60 minutes of exercise per day. This includes walks, play time, and mental stimulation. Adjust based on your dog's age and health — puppies need shorter, gentler sessions while healthy adults can handle more.

Weight Range	110.2–154.3 lbs (50–70 kg)
Full Growth	18–24 months
Daily Calories	~2415–3018 kcal (adult, neutered)

Neapolitan Mastiff Weight & Calorie Guide

Quick Facts

Ideal Weight Range

Neapolitan Mastiff Calorie Calculator