Homemade & Raw Dog Food Calculator
A homemade or raw dog food calculator estimates daily as-fed portions. A common industry convention is about 2–3% of adult body weight (for example, 400–600 g for a 20 kg dog)—not a veterinary standard from WSAVA or NRC. It sizes the portion only; a veterinary nutritionist must balance the recipe.
How to use the homemade dog food calculator
- Enter your dog’s current healthy weight in pounds or kilograms.
- Pick the goal: maintenance, puppy, active, or weight loss.
- Read the daily range in grams and ounces of total food.
- Split the amount into two meals for adults, or three to four for young puppies.
- Weigh the dog and check body condition after two weeks, then adjust.
The rule of thumb behind the numbers
Home-prepared and raw diets are often described as a percentage of body weight because the food has no label calorie count. The ranges below are an industry / raw-feeder convention used for as-fed portion sizing. They are not a veterinary standard published by WSAVA, NRC, FDA, or AVMA—those sources address nutrient completeness and food safety, not a fixed percent-of-body-weight rule.
| Goal | Percent of body weight per day (convention) |
|---|---|
| Adult maintenance | 2–3% |
| Active or working | 3–4% |
| Puppy (varies by age) | 2.5–5% |
| Weight loss (vet supervised) | 1.5–2% |
Energy density varies enormously: a lean chicken and rice mixture might provide around 1.5 kcal per gram, while a fatty raw mix could be well above 2. That is why two dogs eating the same 2.5 percent can gain or lose weight differently. Prefer calorie targets from the dog food calculator when you know ingredient kcal.
Worked example
A 20 kg (44 lb) adult dog in maintenance mode: 2 percent is 400 g and 3 percent is 600 g, so the daily range is 400–600 g (14–21 oz). Start in the middle at about 500 g, split into two 250 g meals. If after two weeks the dog has lost weight and ribs are very prominent, move toward 550 g; if the waist is disappearing, move toward 450 g.
Portion size is not a balanced diet
The hardest part of homemade feeding is not the amount but the composition. Dogs need specific amounts of calcium, phosphorus, zinc, iodine, vitamins A, D, and E, and essential fatty acids. A recipe made only of muscle meat and vegetables is typically very low in calcium and high in phosphorus. Stockman et al. (2013, JAVMA) evaluated 200 published homemade maintenance recipes and found that most were deficient in one or more essential nutrients. Dogs on incomplete diets may look fine for months before problems such as bone disease or skin and coat changes appear.
WSAVA’s nutrition guidelines suggest asking whether the person writing the recipe has formal nutrition training, and recommend a board-certified veterinary nutritionist (ACVN or ECVCN) when feeding homemade diets. Many offer remote consultations and will build a recipe around your dog’s health history and ingredient preferences. Always consult your veterinarian before switching diets.
Food safety with raw ingredients
The FDA and AVMA both highlight pathogen risk in raw animal-source protein. Salmonella and Listeria can be shed by dogs that look healthy, and the bacteria spread to bowls, counters, and hands. If you feed raw: keep it frozen until needed, thaw in the refrigerator, wash hands and surfaces with hot soapy water, discard leftovers promptly, and be cautious around young children or anyone with a weakened immune system. Cooked homemade diets avoid most of this risk but still need to be balanced.
Common mistakes
- Treating a portion calculator as proof the recipe is complete.
- Leaving out a calcium source, or adding bones without guidance.
- Using cups instead of weighing food.
- Adding toxic ingredients such as onions, grapes, raisins, or macadamia nuts.
- Switching to a new recipe overnight instead of transitioning over a week or more.
Next steps
If you want calorie-based targets, use the dog food calculator. Puppies should be fed using the puppy food calculator, and ideally a commercial complete-and-balanced growth diet or a nutritionist-built recipe. Read our raw feeding basics guide for a deeper look at benefits claimed, risks, and how to evaluate a recipe.
Frequently asked questions
How much homemade food should I feed my dog per day?
A common industry convention for adult maintenance is about 2 to 3 percent of body weight per day as fed (not a WSAVA/NRC standard), with puppies and very active dogs higher and overweight dogs lower. This calculator turns that range into grams and ounces. It sets portion size only; it does not make a recipe nutritionally complete.
Is a homemade or raw diet nutritionally complete?
Only if the recipe is formulated to be. Stockman et al. (2013, JAVMA) found most published homemade maintenance recipes deficient in one or more essential nutrients. WSAVA recommends recipes formulated by a board-certified veterinary nutritionist.
Does the 2 to 3 percent rule apply to puppies?
The same convention often uses a higher percentage for puppies, roughly 2.5 to 5 percent depending on age, but growing dogs are also the most vulnerable to calcium and phosphorus errors. Do not feed a homemade puppy diet without a vet-nutritionist formulation.
Is raw feeding safe?
Raw meat can carry Salmonella, Listeria, and other pathogens that affect dogs and the people handling the food. Several veterinary organizations discourage raw-meat diets for this reason. If you choose raw, use strict kitchen hygiene and avoid it in homes with infants, elderly, or immunocompromised members.
How do I convert percent of body weight to cups?
Cups vary too much by ingredient to convert reliably. Weigh the food with a kitchen scale in grams or ounces; that is why the calculator reports weight. Calories are a better target, which is where our dog food calculator helps.
What if my dog is gaining or losing weight?
Adjust the daily amount by about 10 percent and check again in two weeks. For weight loss, work with your veterinarian, because calorie-restricted homemade diets can leave nutrient gaps unless the recipe was designed for it.
References
- World Small Animal Veterinary Association (WSAVA) — Global Nutrition Guidelines and Nutritional Assessment Tools Checked .
- National Research Council / National Academies Press — Nutrient Requirements of Dogs and Cats (2006) Checked .
- U.S. Food and Drug Administration (FDA) — Get the Facts about Raw Pet Food Diets Checked .
- American Veterinary Medical Association (AVMA) — Raw or undercooked animal-source protein in cat and dog diets Checked .
- JAVMA 242(11):1500–1505 — Evaluation of recipes of home-prepared maintenance diets for dogs (Stockman et al., 2013) Checked .
Estimates only — not veterinary advice. Results are a starting point for discussion with your veterinarian, not a diagnosis or feeding prescription. Found an error? Tell me.
Calculator version 1.0 · Changelog