Pet Food Calculator
Calculate daily food portions for dogs and cats using the veterinary RER formula. Based on weight, age, and activity level with monthly cost estimates.
| Size / Breed | Weight Range | Daily Cal (est) | Cups/Day (est) |
|---|---|---|---|
| Toy (Chihuahua, Yorkie) | 2-10 lbs | 148 kcal | 0.4 |
| Small (Beagle, Corgi) | 10-25 lbs | 338 kcal | 0.9 |
| Medium (Border Collie, Bulldog) | 25-50 lbs | 592 kcal | 1.6 |
| Large (Lab, Golden Retriever) | 50-80 lbs | 886 kcal | 2.3 |
| Giant (Great Dane, Mastiff) | 80-150 lbs | 1,314 kcal | 3.5 |
How to Use Pet Food Calculator
- 1Select dog or cat
- 2Enter pet weight and age
- 3Choose activity level
- 4View daily portions and cost
Frequently Asked Questions
How much should I feed my dog?▾
Use RER formula: 70 × weight in kg^0.75, then multiply by activity factor. A 50 lb moderately active dog needs about 1,100-1,300 calories per day, or roughly 3 cups of dry food.
How many calories does a cat need?▾
Indoor cats need 20-25 calories per pound of body weight. A 10 lb indoor cat needs about 200-250 calories/day, roughly 1/3 to 1/2 cup of dry food.
How often should I feed my pet?▾
Puppies (under 6 months): 3 meals/day. Adult dogs: 2 meals/day. Kittens: 3-4 meals/day. Adult cats: 2 meals/day.
About Pet Food Calculator
Calculate daily food portions for dogs and cats using the veterinary RER formula. Based on weight, age, and activity level with monthly cost estimates.
NexTool's Pet Food Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.
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