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Free tool · Vet-formula based

How much should I feed my dog? Get the exact answer.

Cups on the bag are a guess. This calculator uses the standard veterinary energy formula (RER / MER) to give your dog's real daily calories, portions in cups and grams, a treat budget, water needs, and what it costs vs. making food yourself.

🥣 Portions in cups & grams 🔥 Daily calorie target 🦴 10% treat budget 💧 Water intake 💰 Cost vs. homemade 🐾 Dalmatian-aware
Your dog
Smart defaults are filled in — adjust what you know.
Add cost details (for the savings breakdown)
⚠️
This is a starting estimate, not veterinary advice. Every dog's metabolism differs. Watch your dog's weight and body condition and check with your vet — especially for puppies, seniors, pregnancy, or any health condition.
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Your dog's feeding plan appears here

Fill in the details and hit Calculate. You'll get portions, calories, treats, water, cost, and a printable plan.

Daily calorie target
0 kcal / day
Food per day
0 cups
0 g — weigh for accuracy
Meals per day
2
Split evenly across the day
Per meal
0 cups
0 g each
Water per day
0 cups
0 ml — always available
Why grams beat cups. A scoop of one food can hold hundreds more calories than the same scoop of another. If you can, weigh meals on a kitchen scale — it's the single easiest way to stop accidental over- or under-feeding.
From balanced meals
0 kcal
90% of the day's calories
Treat budget (10% rule)
0 kcal
Keep treats at or under this
What a balanced bowl looks like. Aim for a complete-and-balanced diet that meets AAFCO profiles for your dog's life stage. As a rough frame, adult maintenance diets run around 18%+ protein and 5.5%+ fat on a dry-matter basis; puppies and nursing moms need more.
  • On the label, look for: a named protein first (e.g. "chicken," not "meat"), an AAFCO statement, and calories (kcal) listed per cup or can.
  • Be cautious of: vague "meat by-product" as the main protein, and "grain-free" formulas you haven't discussed with your vet.
  • Homemade meals need a calcium source and the right vitamins/minerals to be complete — the one step most DIY recipes skip.
Your food — per day
$0
$0/mo · $0/yr
One bag lasts
0 days
at this dog's portion
Your current food$0/mo
Homemade (typical)$0/mo
Fresh subscription (typical)$0/mo
Add your bag price and size in the form (under "Add cost details") to see cost per day, how long a bag lasts, and an honest side-by-side of your food vs. homemade vs. a fresh subscription.

💧 Weight-loss timeline

Set your goal to Lose and enter a goal weight to see a safe timeline here.

🔄 7-day food transition

Days 1–225% new · 75% old
Days 3–450% new · 50% old
Days 5–675% new · 25% old
Day 7100% new food
Free · Printable

Get your dog's feeding plan as a printable PDF

We'll email you this exact plan — portions, calories, treat budget, water, and transition schedule — so it's saved and easy to print for the fridge. Plus a few real-food tips from Bear.

No spam, ever. Unsubscribe anytime. 🐾

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Your plan is in your inbox!

Check your email for the full feeding plan. Want a copy right now?

See the full cookbook
Feed smarter for less

Know exactly what's in every bowl

Now you know how much — the cookbook shows you what. 29 vet-referenced recipes that scale to the exact portions above, for a fraction of a fresh-food subscription. Includes Dalmatian-safe, low-purine options.

Get the Cookbook — $14.99

How the dog food calculator works

Every reliable feeding recommendation starts from calories, not cups. This tool uses the same two-step formula veterinary nutritionists use. First it finds your dog's Resting Energy Requirement (RER) — the calories needed at rest — with the equation RER = 70 × (body weight in kg)0.75. Then it multiplies that by a Maintenance Energy Requirement (MER) factor for life stage, activity, spay/neuter status, and goal to get real daily calories.

From there it converts calories into portions using the calorie density of your food (the "kcal/cup" number on the bag), applies the 10% rule for treats, and estimates water needs and cost. Because it's grounded in an established formula rather than a one-size chart, it adapts to your dog.

How much should I feed my dog?

The honest answer: it depends on their weight, age, how active they are, and whether they're spayed or neutered — which is exactly why a flat "1–2 cups" chart on the bag misleads so many owners. A lean, working two-year-old and a couch-loving senior of the same weight can differ by hundreds of calories a day. Use the calculator above for a personalized starting point, then adjust based on what the scale and your dog's body condition tell you over the next few weeks.

Should I measure in cups or grams?

Grams, whenever you can. Cups are convenient but imprecise — the same cup holds different calories depending on the food and how you scoop. A cheap kitchen scale is the fastest fix for accidental overfeeding, which is the most common cause of canine obesity.

Feeding a Dalmatian? Read this first.

Dalmatians are a genuine special case. A quirk in how they process purines leaves them prone to urate bladder stones, so many benefit from a lower-purine diet — limiting organ meats and certain fish while favoring eggs, vegetables, and lower-purine proteins, alongside plenty of water. Our Dog Owner's Cookbook includes Dalmatian-aware, low-purine recipes, and you can read more nutrition breakdowns on the Hearth & Hound blog. This is one area where a quick vet conversation pays off.

Frequently asked questions

How much should I feed my dog per day?

Feed to daily calories, not a fixed cup amount. Start from RER (70 × kg0.75), multiply by a life-stage and activity factor for daily calories, then divide by the calories per cup on your food's label. The calculator above does all of this for you.

Are cups or grams more accurate?

Grams are much more accurate. Cup amounts vary with scooping and food density, so weighing on a kitchen scale gives a far more consistent portion.

How many treats can my dog have?

Treats should stay at or under 10% of daily calories, with balanced meals making up the rest. The calculator shows your dog's exact treat-calorie budget.

Why do Dalmatians need a special diet?

Their purine metabolism makes them prone to urate stones, so many do best on a lower-purine diet with good hydration. Confirm any plan with your vet.

Is this a substitute for a vet?

No. It's a research-based starting estimate. Monitor weight and body condition and consult your veterinarian, especially for puppies, seniors, pregnancy, or medical conditions.

Formula reference: RER/MER equations follow standard small-animal nutrition guidance (see the WSAVA Global Nutrition Guidelines and AAHA weight-management resources). Individual needs vary — your veterinarian is the final word.