Food Portion Calculator
How much should your dog or cat actually eat? Built on the veterinary energy formula (RER/MER) with growth stages, neuter status, treat budgets, and weight-loss planning — not the bag's one-size-fits-all chart, which typically overfeeds.
Per day
2.6 cups
266 g · 985 kcal
Per meal
1.3 cups
× 2 meals/day
Treat budget
99 kcal
10% rule
Using a typical kibble density (380 kcal/cup). Your bag's real number can differ ±25% — check the label for precision.
Meal schedule
Morning and evening, ~12 hours apart, is the standard adult rhythm.
What 99 treat kcal looks like
99 kcal ≈ 33 training treats (3 kcal each) or 3 biscuits. Treats beyond 10% of daily calories are the most common cause of gradual weight gain.
Bag math & monthly cost
A 24 lb bag lasts about 38 days — $1.45/day, or $44.00/month. Set a reorder reminder ~5 days before it runs out.
Switching foods? Use the 7-day transition
Days 1–2
25% new
Days 3–4
50% new
Days 5–6
75% new
Day 7+
100% new
Foods we've reviewed, with your portions
Portions computed from each food's real caloric density.
- Purina Pro Plan Complete Essentials Adult Chicken & Rice Shredded Blend Dry Dog Food (35 lb)2.6 cups/day at 384 kcal/cupCheck Price
- Hill's Science Diet Adult 1-6 Chicken & Barley Dry Dog Food (35 lb)2.7 cups/day at 371 kcal/cupCheck Price
- Purina ONE SmartBlend Chicken & Rice Formula Dry Dog Food (31.1 lb)2.5 cups/day at 389 kcal/cupCheck Price
Based on the standard veterinary energy formula (RER = 70 × kg0.75, adjusted by life stage, neuter status, and activity). Every pet is individual — confirm changes with your vet, especially for puppies under 4 months, weight loss, or medical conditions.