How many calories does a neutered adult Toy Fox Terrier need?

At 6.4 lb, the verified feeding table lists 249 kcal per day for a Toy Fox Terrier (resting energy 156 kcal times a factor of 1.6).

How many calories does an intact adult Toy Fox Terrier need?

At 6.4 lb, the verified feeding table lists 280 kcal per day for a Toy Fox Terrier (resting energy 156 kcal times a factor of 1.8).

How many calories does a Toy Fox Terrier puppy under 4 months need?

At 6.4 lb, the verified feeding table lists 467 kcal per day for a Toy Fox Terrier (resting energy 156 kcal times a factor of 3).

How many calories does the weight-loss row list for a Toy Fox Terrier?

At 6.4 lb, the verified feeding table lists 156 kcal per day for a Toy Fox Terrier (resting energy 156 kcal times a factor of 1).

Feeding calculator

How much to feed a Toy Fox Terrier

A 6.5 lb Toy Fox Terrier is the starting weight on this calculator, taken from the verified adult range (4–9 lb).

Last reviewed November 1, 2026.

Toy Fox Terrier dog — Photo: Mrutan ( talk ) ( Uploads ) · Public domain · Wikimedia Commons

Daily portion

Dog food calculator: 277 kcal; 0.79 cups · 95 g · 2 meals
Merck chart, Adult, neutered: 253 kcal; Resting energy 158 kcal × 1.6, before the calculator's activity and size adjustment.

Lifespan13–15 years

Weight4–9 lb

SizeToy GroupToy Group

Resting energy at that weight is about 158 kcal per day. The Merck neutered-adult factor of 1.6 puts maintenance near 253 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 toy breeds, that neutered-adult portion is 53 kcal lower than the 306 kcal for an average toy breed at 8.4 lb.

Portions are a starting estimate. Toy Fox 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

Toy Fox 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
4 lb (1.8 kg)	109 kcal	174 kcal	196 kcal	326 kcal	218 kcal	109 kcal
5.3 lb (2.4 kg)	135 kcal	216 kcal	243 kcal	405 kcal	270 kcal	135 kcal
6.4 lb (2.9 kg)Current weight	156 kcal	249 kcal	280 kcal	467 kcal	311 kcal	156 kcal
7.7 lb (3.5 kg)	179 kcal	287 kcal	322 kcal	537 kcal	358 kcal	179 kcal
9 lb (4.1 kg)	202 kcal	323 kcal	363 kcal	605 kcal	403 kcal	202 kcal