How many calories does a neutered adult Boston Terrier need?

At 18.5 lb, the verified feeding table lists 553 kcal per day for a Boston Terrier (resting energy 345 kcal times a factor of 1.6).

How many calories does an intact adult Boston Terrier need?

At 18.5 lb, the verified feeding table lists 622 kcal per day for a Boston Terrier (resting energy 345 kcal times a factor of 1.8).

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

At 18.5 lb, the verified feeding table lists 1036 kcal per day for a Boston Terrier (resting energy 345 kcal times a factor of 3).

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

At 18.5 lb, the verified feeding table lists 345 kcal per day for a Boston Terrier (resting energy 345 kcal times a factor of 1).

Feeding calculator

How much to feed a Boston Terrier

A 18.5 lb Boston Terrier is the starting weight on this calculator, taken from the verified adult range (12–25 lb).

Last reviewed November 1, 2026.

Boston Terrier dog — Photo: Ed Siasoco · CC BY 2.0 · Wikimedia Commons

Daily portion

Dog food calculator: 580 kcal; 1.66 cups · 199 g · 2 meals
Merck chart, Adult, neutered: 552 kcal; Resting energy 345 kcal × 1.6, before the calculator's activity and size adjustment.

Lifespan11–13 years

Weight12–25 lb

SizeSmall GroupNon-Sporting Group

Resting energy at that weight is about 345 kcal per day. The Merck neutered-adult factor of 1.6 puts maintenance near 552 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 small breeds, that neutered-adult portion is 58 kcal higher than the 494 kcal for an average small breed at 16 lb.

Portions are a starting estimate. Boston 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

Boston 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
11.9 lb (5.4 kg)	248 kcal	397 kcal	446 kcal	744 kcal	496 kcal	248 kcal
15.2 lb (6.9 kg)	298 kcal	477 kcal	536 kcal	894 kcal	596 kcal	298 kcal
18.5 lb (8.4 kg)Current weight	345 kcal	553 kcal	622 kcal	1036 kcal	691 kcal	345 kcal
21.8 lb (9.9 kg)	391 kcal	625 kcal	703 kcal	1172 kcal	781 kcal	391 kcal
24.9 lb (11.3 kg)	431 kcal	690 kcal	777 kcal	1294 kcal	863 kcal	431 kcal