Feeding calculator

How much to feed a Cavalier King Charles Spaniel

A 15.5 lb Cavalier King Charles Spaniel is the starting weight on this calculator, taken from the verified adult range (13–18 lb).

Last reviewed November 1, 2026.

Cavalier King Charles Spaniel dog
Photo: NNeilAlieNN · CC BY-SA 3.0 · Wikimedia Commons

Your inputs

Prefilled for a Cavalier King Charles Spaniel. Verified adult weight: 13–18 lb.

Activity

Daily portion

Dog food calculator
508 kcal
1.45 cups · 174 g · 2 meals
Merck chart, Adult, neutered
483 kcal
Resting energy 302 kcal × 1.6, before the calculator's activity and size adjustment.
Lifespan12–15 years
Weight13–18 lb
SizeSmallGroupToy Group

Resting energy at that weight is about 302 kcal per day. The Merck neutered-adult factor of 1.6 puts maintenance near 483 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 about the same as the 494 kcal for an average small breed at 16 lb.

Portions are a starting estimate. Cavalier King Charles 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

Cavalier King Charles Spaniel adults maintenance energy

Swipe sideways to read every column.

WeightRERAdult, neuteredAdult, intactPuppy under 4 monthsPuppy 4 months and olderWeight loss
13 lb (5.9 kg)265 kcal424 kcal477 kcal795 kcal530 kcal265 kcal
14.3 lb (6.5 kg)285 kcal456 kcal513 kcal855 kcal570 kcal285 kcal
15.4 lb (7 kg)Current weight301 kcal482 kcal542 kcal904 kcal602 kcal301 kcal
16.8 lb (7.6 kg)320 kcal513 kcal577 kcal961 kcal641 kcal320 kcal
17.9 lb (8.1 kg)336 kcal538 kcal605 kcal1008 kcal672 kcal336 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 Cavalier King Charles Spaniel: 13–18 lb. This page starts the calculator at 15.5 lb.

Sources

More Toy Group breeds

All Toy Group breeds

More small breeds

All small dog breeds

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