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CatsnutritionVerified Formula

Cat Raw Food & BARF Diet Calculator

Computes daily raw feeding portions in grams and ounces for cats and kittens based on Prey Model Raw (PMR) and BARF guidelines (80–84% muscle meat, 6–10% edible bone, 5% liver, 5% other secreting organ).

Parameters

Quick fill:
lbs
Calculated Output
Total Daily Raw Food Amount
4.0 oz / dayDaily Raw Portion2 meals of ~2 oz each Feeding Schedule
What This Result Means
For a 10.0 lbs cat feeding at 2.5% body weight: feed 4.0 oz / day split into 2 meals of ~2 oz each. Ensure heart meat is included for vital taurine.
Calculation Details & Equivalents
Muscle Meat (80–84%)
91 g (3.2 oz) — includes poultry, rabbit, beef + heart for taurine
Edible Raw Bone (6–10%)
11 g (0.4 oz) — raw chicken wings, necks, frames
Liver (5%)
6 g (0.2 oz) — essential vitamin A
Other Secreting Organ (5%)
6 g (0.2 oz) — kidney, spleen, or pancreas
Target Feeding Rate
2.5% of body weight daily
Veterinary & Animal Science Advisory

This calculator provides evidence-based estimates derived from published veterinary equations (NRC, WSAVA, FAO). Outputs are intended for educational and decision-support guidance only. Always consult a licensed veterinarian or qualified specialist for clinical diagnosis, treatment planning, or prescription drug administration.

Understanding the Cat Raw Food & BARF Diet Calculator

What This Calculator Does

Unlike dogs and humans who are omnivores, cats are obligate carnivores designed by millions of years of evolution to digest fresh moisture-rich animal proteins, edible bones, and organ meats. Our cat raw food calculator calculates your cat's exact daily food portion and breaks down the essential balance of muscle meat, bone, and secreting organs based on verified feline Prey Model Raw (PMR) principles.

How to Use This Calculator

Enter your cat’s current or ideal body weight and select their life stage or activity level. The calculator calculates their total daily food mass in both ounces and grams, and divides it into the four essential components of a balanced feline diet.

Key Factors That Affect the Result

  • Adult cats maintain lean mass on 2.0% to 3.0% of body weight daily, while growing kittens burn through 4% to 8% to fuel lightning-fast skeletal growth.
  • Taurine is non-negotiable: Cats cannot manufacture their own taurine. Feeding raw poultry hearts (which are rich in natural taurine) or supplementing powdered taurine is critical to prevent fatal cardiomyopathy and retinal blindness.
  • Calcium-to-phosphorus ratio: Pure muscle meat is high in phosphorus and lacks calcium. Feeding 6% to 10% edible raw bone or eggshell powder provides the essential mineral balance.
  • Safe food handling: Keep raw meats frozen until use, thaw in the refrigerator, discard uneaten raw food after 30 minutes, and sanitize prep surfaces.

Why This Matters for Your Cats

Feeding a biologically appropriate raw diet provides exceptional urinary hydration, cleaner teeth from chewing raw bone, smaller odorless stools, and lean muscle mass. Using this calculator prevents common beginner mistakes like underfeeding organs or skewing the calcium-phosphorus ratio.

Veterinary Advisory: This calculator provides educational portion estimates based on feline PMR guidelines. Before transitioning your cat to raw feeding, consult a veterinarian trained in veterinary clinical nutrition.

Formula & Mathematical Methodology

Standard Mathematical Formula
Adult Daily Food = 2.0% to 3.5% of body weight | Kitten Daily Food = 4.0% to 8.0% of body weight | Standard PMR Ratio: 80% Muscle Meat + 10% Edible Raw Bone + 5% Liver + 5% Other Secreting Organ.

Formula Variables Defined

BWCat Body Weight(lbs or kg)

Current scale weight or ideal target weight

RateDaily Feeding Percentage(%)

Percentage of body weight fed per 24-hour cycle

Muscle MeatMuscle Meat Portion(oz or g)

80% of diet (including heart, gizzards, tongue for taurine)

Edible BoneEdible Raw Bone Portion(oz or g)

10% of diet (soft raw poultry bones like neck, wing tips)

LiverLiver Portion(oz or g)

5% of diet (essential vitamin A and copper)

Other OrganOther Secreting Organ(oz or g)

5% of diet (kidney, spleen, pancreas, thymus)

Step-by-Step Calculation Example

Example: 4.5 kg (10 lb) Adult Cat at 2.5% Daily Feeding Rate

A healthy adult indoor cat weighing 10 lbs (4.54 kg) fed a standard PMR raw diet.

  1. Calculate Daily Intake: 10 lbs × 2.5% = 0.25 lbs = 4.0 oz (~113.4 grams)
  2. Muscle Meat (80%): 4.0 oz × 0.80 = 3.2 oz (90.7 g)
  3. Edible Raw Bone (10%): 4.0 oz × 0.10 = 0.4 oz (11.3 g)
  4. Liver (5%): 4.0 oz × 0.05 = 0.2 oz (5.7 g)
  5. Other Secreting Organ (5%): 4.0 oz × 0.05 = 0.2 oz (5.7 g)
  6. Meal Schedule: Divide into 2 equal daily meals of ~2.0 oz (57 g) each
Final Output: 113 g / 4.0 oz daily total — 91 g meat, 11 g raw bone, 6 g liver, 6 g other organ (split into 2 meals)

Key Assumptions

  • Fresh raw meats, bones, and organs are human-grade and sourced from reputable cold-chain suppliers.
  • All bones fed are 100% RAW and never cooked, boiled, or baked (cooked bones splinter dangerously and can pierce feline intestines).

Biological Limitations

  • Cats are obligate carnivores requiring high levels of amino acid taurine. Poultry hearts should form a consistent portion of muscle meat, or a taurine supplement must be added.
  • Immunocompromised cats or households with high-risk individuals should exercise strict biological hygiene.

Verified Scientific & Veterinary Sources

Version: 1.0.0Methodology Reviewed: 2026-09-14
1. Feline Nutrition: Obligate Carnivore Anatomy, PMR Ratios, and Taurine Requirementspeer-reviewed
Feline Nutrition Foundation & NRC Small Animal Board (2022). Feline Nutrition Education Series
Access Source Authority
2. Nutrient Requirements of Dogs and Catstextbook
National Research Council (NRC) Committee on Animal Nutrition (2006). National Academies Press, Washington, D.C.
Access Source Authority

Cat Raw Food & BARF Diet Calculator — FAQs

Most healthy adult cats thrive on 2.0% to 3.0% of their ideal body weight daily. For example, a 10 lb (4.5 kg) cat needs approximately 3.2 to 4.8 ounces (90 to 135 grams) of total raw food per day, divided into 2 meals.

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