Vet-Recommended formula to calculate exactly how much to feed your dog. Adjusts for weight, age, breed, and activity level.
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📊 Your Dog's Daily Food Amount
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⚕️ This is a guideline. Always follow your specific food's feeding recommendations and consult your vet, especially for puppies, pregnant/nursing dogs, or dogs with health conditions.
How to Calculate Your Dog's Daily Food Intake
This calculator uses the same resting energy requirement (RER) formula veterinarians use to estimate a dog's baseline calorie needs:
RER = 70 × (body weight in kg)0.75
From there, a maintenance energy requirement (MER) multiplier is applied based on life stage and activity level:
Neutered adult: ×1.6
Intact adult: ×1.8
Overweight / weight loss: ×1.0 (or RER × 0.8)
Active or working dog: ×2.0 to ×5.0
Puppy under 4 months: ×3.0
Puppy 4 months to adult: ×2.0
For example, a 22 lb (10 kg) neutered adult dog needs roughly 70 × 100.75 × 1.6 ≈ 440 kcal per day. Most adult kibbles run 350–450 kcal per cup, so that works out to about one cup daily, split into two meals.
5 Things the Number Doesn't Tell You
Treats count. Training treats and chews can quietly add 10–30% of daily calories. Subtract them from the food portion or the plan falls apart.
Energy per cup varies. A cup of dense premium kibble may hold 100+ more kcal than a cup of lightweight budget food. Use the kcal/cup printed on the label, not the volume.
Body condition beats the scale. If you can't feel the ribs under a thin fat layer, or see a waist from above, the result here is just a starting point—adjust down.
Life changes shift needs. Spaying or neutering drops the requirement about 20–30%; moving from a yard to an apartment drops it further. Re-run the numbers after big changes.
Puppies and seniors are special cases. Growing puppies need far more per pound; older dogs often need fewer but higher-quality protein. When in doubt, your vet's feeding chart wins.
💡 Use the result above as a weekly target, then divide by meals. This is a guideline, not a prescription—your veterinarian knows your dog's health history best.
🛒 Top-Rated Dog Foods We Recommend
Orijen Original Six Fish ⭐⭐⭐⭐⭐ Premium, high-protein
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How to Use This Calculator (and What It Can't Tell You)
The calculator above estimates daily food based on your dog's weight, age, and activity. Treat the number as a starting point, not a rule carved in stone. Two Labs of the same weight can need very different amounts depending on metabolism, neuter status, and whether they consider the sofa a cardio workout.
Feeding by Life Stage
Puppies: need more calories per pound and usually 3–4 small meals a day to support growth.
Adults: most do well on two meals; highly active dogs may need more total calories.
Seniors: often need fewer calories but the same or better protein quality to maintain muscle.
Reading the Food Bag
The feeding chart on the bag is a decent baseline, but it's written for the "average" dog. Compare it to our estimate, then watch your dog: a visible waist and easily felt (not seen) ribs usually means the amount is right. The number on the scale matters less than your dog's body condition.
Signs the Amount Is Off
Too much: rapid weight gain, reluctance to move, soft stools.
Too little: constant begging, ribs prominent, low energy.
When to Talk to Your Veterinarian
This tool gives general feeding estimates from standard formulas. It is not a substitute for your veterinarian's advice — especially for puppies, dogs with health conditions, or sudden weight changes. If you're unsure, your vet can calculate a precise target using your dog's specific needs.
Turning the Number Into a Real Feeding Plan
The calculator gives a daily calorie target, but the useful part is what you do with it. Weigh your dog every couple of weeks and adjust the portion if his ribs get harder or easier to feel — that "body condition" check matters more than the exact number. Cooper's ideal turned out a notch below the calculator's max.
Split the total into two or three meals, and remember treats count. For safe people-food extras, see our list of 25 foods dogs can eat. If weight won't budge, a vet can rule out a medical cause before you cut calories further.
Adjust When Life Changes
Re-run the calculator after a spay or neuter, a big activity shift, or any weight change — Cooper's target dropped after his energy dipped post-neuter, and we'd have overfed him for months without noticing. The number is a starting point you tune weekly by feel, not a law carved in stone.
If the Scale won't budge, a vet can rule out a medical cause before you cut calories further and risk a deficient diet.
