Pet Calorie Calculator
Daily calories (RER & MER) for dogs and cats.
Instant results✓ Source-backed
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How this is calculated
Resting Energy Requirement RER = 70 × (body weight in kg)^0.75, multiplied by life-stage factors from the WSAVA and AAHA nutrition guidelines. Individual needs vary by up to ±50%, so adjust portions to keep a body condition score of 4–5/9.
Source-based educational tool; not independently reviewed by a veterinarian. Cited guidance does not imply endorsement by its authors.
Formula
RER = 70 × (weight kg)^0.75 MER = RER × life-stage factor (e.g. 1.6 neutered dog, 1.2 neutered cat)
Assumptions
- •Healthy adult unless a growth/work stage is chosen
- •Individual needs vary ±50%
- •For weight loss, enter ideal weight