Answer a few questions to find a dry food recipe for your dog or cat and estimate their daily portion. Takes under 2 minutes.
RER = 70 × weight (kg)⁰·⁷⁵. Daily energy MER = RER × life-stage factor × activity × body condition. Grams per day = daily energy ÷ kcal per 100 g × 100, rounded to the nearest 5 g.
Enter weight to see your calculation.
| Life stage | Dog | Cat |
|---|---|---|
| Young pet · 2–4 months | × 3 | × 2.5 |
| Young pet · 4–12 months | × 2 | × 2 |
| Adult · neutered | × 1.6 | × 1.2 |
| Adult · intact | × 1.8 | × 1.4 |
| Dog: Senior · 7 years and over, earlier in large breeds Cat: Mature adult and senior · 7 years and over | × 1.4 | × 1.2 |
These are starting estimates, not universal requirements. Activity and body-condition adjustments are ±10% model settings. Individual needs vary; senior age alone does not determine energy needs.
Method references: 2021 AAHA Nutrition and Weight Management Guidelines for Dogs and Cats · Merck Veterinary Manual