How many calories does a neutered adult Irish Water Spaniel need?

At 56.4 lb, the verified feeding table lists 1275 kcal per day for a Irish Water Spaniel (resting energy 797 kcal times a factor of 1.6).

How many calories does an intact adult Irish Water Spaniel need?

At 56.4 lb, the verified feeding table lists 1434 kcal per day for a Irish Water Spaniel (resting energy 797 kcal times a factor of 1.8).

How many calories does a Irish Water Spaniel puppy under 4 months need?

At 56.4 lb, the verified feeding table lists 2390 kcal per day for a Irish Water Spaniel (resting energy 797 kcal times a factor of 3).

How many calories does the weight-loss row list for a Irish Water Spaniel?

At 56.4 lb, the verified feeding table lists 797 kcal per day for a Irish Water Spaniel (resting energy 797 kcal times a factor of 1).

Feeding calculator

How much to feed a Irish Water Spaniel

A 56.5 lb Irish Water Spaniel is the starting weight on this calculator, taken from the verified adult range (55–68 lb (male), 45–58 lb (female)).

Last reviewed November 1, 2026.

Irish Water Spaniel dog — Photo: R.H.Moore: All about dogs; a book for doggy people New York,J. Lane,1900. https://www.biodiversitylibrary.org/item/75529 · Public domain · Wikimedia Commons

Daily portion

Dog food calculator: 1276 kcal; 3.65 cups · 437 g · 2 meals
Merck chart, Adult, neutered: 1275 kcal; Resting energy 797 kcal × 1.6, before the calculator's activity and size adjustment.

Lifespan12–13 years

Weight55–68 lb (male), 45–58 lb (female)

SizeLarge GroupSporting Group

Resting energy at that weight is about 797 kcal per day. The Merck neutered-adult factor of 1.6 puts maintenance near 1275 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 large breeds, that neutered-adult portion is 47 kcal lower than the 1322 kcal for an average large breed at 59.2 lb.

Portions are a starting estimate. Irish Water Spaniel 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

Irish Water Spaniel 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
45 lb (20.4 kg)	672 kcal	1075 kcal	1209 kcal	2016 kcal	1344 kcal	672 kcal
50.7 lb (23 kg)	735 kcal	1176 kcal	1323 kcal	2206 kcal	1470 kcal	735 kcal
56.4 lb (25.6 kg)Current weight	797 kcal	1275 kcal	1434 kcal	2390 kcal	1593 kcal	797 kcal
62.2 lb (28.2 kg)	857 kcal	1371 kcal	1542 kcal	2570 kcal	1713 kcal	857 kcal
67.9 lb (30.8 kg)	915 kcal	1464 kcal	1647 kcal	2746 kcal	1830 kcal	915 kcal