Calculator
Dog resting calorie calculator
Estimate resting energy requirement (RER) from weight. This is an educational starting point, not veterinary advice or a daily feeding target.
Resting energy calculator
This estimates resting energy requirement (RER), not an individualized feeding prescription.
Estimated resting energy requirement:
Actual needs vary with health, body condition, life stage, activity, and environment. Ask your veterinarian before changing a feeding plan.
Formula and assumptions
RER is calculated as 70 × body weight in kilograms0.75. For example, a 10 kg dog has an estimated RER of 394 kcal/day. Individual energy needs may be higher or lower.
Source: Merck Veterinary Manual, Nutritional Requirements of Small Animals. Formula reviewed August 30, 2026.