How many calories does a neutered adult Glen of Imaal Terrier need?

At 35.9 lb, the verified feeding table lists 909 kcal per day for a Glen of Imaal Terrier (resting energy 568 kcal times a factor of 1.6).

How many calories does an intact adult Glen of Imaal Terrier need?

At 35.9 lb, the verified feeding table lists 1022 kcal per day for a Glen of Imaal Terrier (resting energy 568 kcal times a factor of 1.8).

How many calories does a Glen of Imaal Terrier puppy under 4 months need?

At 35.9 lb, the verified feeding table lists 1704 kcal per day for a Glen of Imaal Terrier (resting energy 568 kcal times a factor of 3).

How many calories does the weight-loss row list for a Glen of Imaal Terrier?

At 35.9 lb, the verified feeding table lists 568 kcal per day for a Glen of Imaal Terrier (resting energy 568 kcal times a factor of 1).

Feeding calculator

How much to feed a Glen of Imaal Terrier

A 36 lb Glen of Imaal Terrier is the starting weight on this calculator, taken from the verified adult range (32–40 lb).

Last reviewed November 1, 2026.

Glen of Imaal Terrier dog — Photo: Sami Kronqvist · CC BY-SA 2.5 · Wikimedia Commons

Daily portion

Dog food calculator: 910 kcal; 2.6 cups · 312 g · 2 meals
Merck chart, Adult, neutered: 910 kcal; Resting energy 569 kcal × 1.6, before the calculator's activity and size adjustment.

Lifespan10–15 years

Weight32–40 lb

SizeMedium GroupTerrier Group

Resting energy at that weight is about 569 kcal per day. The Merck neutered-adult factor of 1.6 puts maintenance near 910 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 medium breeds, that neutered-adult portion is 36 kcal higher than the 874 kcal for an average medium breed at 34.1 lb.

Portions are a starting estimate. Glen of Imaal Terrier 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

Glen of Imaal Terrier 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
32 lb (14.5 kg)	520 kcal	832 kcal	936 kcal	1560 kcal	1040 kcal	520 kcal
34 lb (15.4 kg)	544 kcal	871 kcal	980 kcal	1633 kcal	1088 kcal	544 kcal
35.9 lb (16.3 kg)Current weight	568 kcal	909 kcal	1022 kcal	1704 kcal	1136 kcal	568 kcal
37.9 lb (17.2 kg)	591 kcal	946 kcal	1064 kcal	1774 kcal	1182 kcal	591 kcal
39.9 lb (18.1 kg)	614 kcal	983 kcal	1106 kcal	1843 kcal	1229 kcal	614 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 Glen of Imaal Terrier: 32–40 lb. This page starts the calculator at 36 lb.

Sources

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