How Much Should I Feed My Dog Calculator by Weight
Precise daily food amount based on your dog’s exact weight
Dog Weight (lbs)
Life Stage
Food Type
Custom kcal/cup (optional)
How Much Should I Feed My Dog by Weight?
Feeding by your dog’s actual body weight using the veterinary RER formula is the most accurate method available without laboratory testing. Our how much should I feed my dog by weight calculator gives you a calorie-precise daily portion in cups (dry) or ounces (wet) for any life stage.
Weight-Based Feeding Quick Reference
| Weight | kcal/day | Dry (380 kcal/cup) | Wet (45 kcal/oz) |
|---|---|---|---|
| 15 lbs | 392 | 1.03 cups | 8.7 oz |
| 30 lbs | 660 | 1.74 cups | 14.7 oz |
| 50 lbs | 985 | 2.59 cups | 21.9 oz |
| 80 lbs | 1410 | 3.71 cups | 31.3 oz |
FAQs
Should I feed by weight or follow the bag guide?
By weight is more accurate. Bag guides use broad weight ranges that can over-estimate by 20-30%. Feeding by your dog’s actual weight using the RER formula is the method used by veterinary nutritionists and is far more precise.
My dog is 42 lbs — how much should I feed?
A 42 lb adult neutered dog needs approximately 870 kcal/day. At 380 kcal/cup (standard kibble), that’s about 2.29 cups/day (1.15 cups twice daily). Use the calculator above with your food’s exact calorie density for the most accurate result.
Conclusion
Our how much should I feed my dog by weight calculator gives you a precise daily portion instantly. Combine with our weight calculator for monthly health monitoring.