How many calories does a neutered adult Neapolitan Mastiff need?

At 129.9 lb, the verified feeding table lists 2381 kcal per day for a Neapolitan Mastiff (resting energy 1488 kcal times a factor of 1.6).

How many calories does an intact adult Neapolitan Mastiff need?

At 129.9 lb, the verified feeding table lists 2679 kcal per day for a Neapolitan Mastiff (resting energy 1488 kcal times a factor of 1.8).

How many calories does a Neapolitan Mastiff puppy under 4 months need?

At 129.9 lb, the verified feeding table lists 4465 kcal per day for a Neapolitan Mastiff (resting energy 1488 kcal times a factor of 3).

How many calories does the weight-loss row list for a Neapolitan Mastiff?

At 129.9 lb, the verified feeding table lists 1488 kcal per day for a Neapolitan Mastiff (resting energy 1488 kcal times a factor of 1).

Feeding calculator

How much to feed a Neapolitan Mastiff

A 130 lb Neapolitan Mastiff is the starting weight on this calculator, taken from the verified adult range (150 lb (male), 110 lb (female)).

Last reviewed November 1, 2026.

Neapolitan Mastiff dog — Photo: gomagoti · CC BY-SA 2.0 · Wikimedia Commons

Daily portion

Dog food calculator: 2145 kcal; 6.13 cups · 735 g · 2 meals
Merck chart, Adult, neutered: 2384 kcal; Resting energy 1490 kcal × 1.6, before the calculator's activity and size adjustment.

Lifespan7–9 years

Weight150 lb (male), 110 lb (female)

SizeGiant GroupWorking Group

Resting energy at that weight is about 1490 kcal per day. The Merck neutered-adult factor of 1.6 puts maintenance near 2384 kcal before activity is added. The dog food calculator on this page uses that same resting-energy formula, then applies the activity and size adjustments from the main dog food calculator.

Reading the portions

Compared with other single-size giant breeds, that neutered-adult portion is 195 kcal higher than the 2189 kcal for an average giant breed at 116 lb.

Portions are a starting estimate. Neapolitan Mastiff individuals can vary by body condition, neuter status, and how much they work. Adjust the bowl from what you see on the ribs, not from the table alone.

Feeding table from the verified weight chart

RER=70*kg^0.75; MER=RER*factor. Starting estimate only; individuals vary up to 50%; adjust by body condition

Neapolitan Mastiff adults maintenance energy

Swipe sideways to read every column.

Weight	RER	Adult, neutered	Adult, intact	Puppy under 4 months	Puppy 4 months and older	Weight loss
110 lb (49.9 kg)	1314 kcal	2103 kcal	2366 kcal	3943 kcal	2628 kcal	1314 kcal
119.9 lb (54.4 kg)	1402 kcal	2243 kcal	2524 kcal	4206 kcal	2804 kcal	1402 kcal
129.9 lb (58.9 kg)Current weight	1488 kcal	2381 kcal	2679 kcal	4465 kcal	2977 kcal	1488 kcal
140 lb (63.5 kg)	1575 kcal	2519 kcal	2834 kcal	4724 kcal	3149 kcal	1575 kcal
149.9 lb (68 kg)	1658 kcal	2652 kcal	2984 kcal	4973 kcal	3315 kcal	1658 kcal

The highlighted row follows the weight in the calculator above.

Frequently asked

Questions from the breed record

Use the verified adult weight for a Neapolitan Mastiff: 150 lb (male), 110 lb (female). This page starts the calculator at 130 lb.

Sources

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