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About Raw Dog Food Calculator

A free raw feeding tool built by dog owners and nutrition researchers who wanted accurate, research-backed BARF and Prey Model calculations — without the guesswork.

Why We Built This Calculator

Raw feeding is one of the most effective dietary choices you can make for a dog's long-term health. Dogs on properly balanced BARF and Prey Model diets consistently show improvements in coat quality, dental health, digestion, and energy levels. The problem: getting the portions right is genuinely hard without a reliable tool.

Most raw feeding guides give you the percentages — 70% muscle, 10% bone, 5% liver, 5% organs, 10% vegetables — but leave you doing the math by hand every time your dog's weight changes, every time you adjust for a life stage transition, every time activity changes. We built this calculator to do that math instantly and accurately.

The formula accounts for life stage (puppy feeding at 5–8% of body weight, adults at 2–3%, seniors at 1.5–2%), activity level, and both BARF and Prey Model ratios. It follows frameworks established by Dr. Ian Billinghurst, the Raw Feeding Veterinary Society (RFVS), and the National Research Council's canine nutrient guidelines.

Our Methodology

Every calculation on this site traces back to peer-reviewed veterinary nutrition research and established raw feeding frameworks:

  • Body weight percentage model: The foundation of all calculations. Adult dogs eat 2–3% of ideal body weight daily; puppies 5–8%; seniors 1.5–2%. These ranges are supported by the American College of Veterinary Nutrition (ACVN) and align with the National Research Council's energy guidelines for domestic canines.
  • BARF ratios: 70% muscle meat / 10% raw meaty bone / 5% liver / 5% other secreting organs / 10% vegetables and fruit. Developed by Dr. Ian Billinghurst and widely adopted by the BARF World organization.
  • Prey Model ratios: 80% muscle meat / 10% raw meaty bone / 5% liver / 5% other secreting organs. No plant matter. Modeled on whole-prey consumption patterns documented in wild canid studies.
  • Activity multipliers: Adjustments derived from NRC energy requirement tables for working, active, and sedentary dogs.

We verify our calculations against source references quarterly and update the tool when new research warrants changes. The raw dog food calculator was last updated .

Built for Raw Feeders

Every feature — breed presets, kg/lbs toggle, BARF vs Prey Model toggle, life stage adjustment — was designed around how actual raw feeders think about their dog's diet.

Free, Always

No paywalls, no account required, no premium tiers. Raw feeding is already niche enough without adding a subscription fee for a basic calculation tool.

Research-Backed

Our formulas cite the NRC, ACVN, RFVS, and Dr. Ian Billinghurst's published work. We don't invent ratios — we implement the ones the raw feeding community has validated.

Educational First

The calculator is supported by a blog written by raw feeders for raw feeders — covering BARF ratios, organ sourcing, transitioning tips, safety, and more.

Our Editorial Process

Every article on RawDogFoodCalculator.com follows a consistent process before publication:

  1. Research: Cross-reference the topic against the tool spec, RFVS guidelines, NRC publications, and published veterinary nutrition literature.
  2. Write: Draft content from the perspective of a knowledgeable practitioner. No filler language, no vague claims, no undocumented statistics.
  3. Verify facts: Every specific claim (percentages, nutrient values, health effects) is traced to a source before publication.
  4. Date and update: All content carries a datePublished and lastUpdated timestamp. We revise articles when research or community standards change.

We don't publish content that can't be substantiated. If something is debated in the raw feeding community (like the role of vegetables in canine nutrition), we present both positions and cite the evidence for each.

Questions or Corrections?

Found a calculation error, have a suggestion, or want to contribute? We read every message.

contact@rawdogfoodcalculator.com